Educational worksheet for practicing prefix usage, titled "Fill in the Prefixes #1," with a bank of prefixes and words to complete.

Let's solve this worksheet step by step.

Objective:

Fill in the correct prefix from the Bank of Prefixes to complete each word.
The prefixes available are:

- de-, ex-, im-, mis-, pre-, un-
- dis-, il-, in-, non-, re-, with-

We’ll go through each word and determine the most appropriate prefix based on meaning and common usage.

---

Step-by-step Solutions:

#### 1. ___ fix
- refix → *refix* (not common)
- disfix? No.
- unfix? Not standard.
- re-fix → refix is not common, but re- + fix = refix (rare).
- Better: de- → defix? No.
- Actually, re- is used in refix, but more commonly we say re-fix as a compound verb.
- But better answer: dis- → disfix? Not a word.
- Wait — unfix? Not standard.
- Actually, un- is used in unfasten, untie, so unfix is acceptable in informal use.
- However, re- is more likely: re-fix → refix (used in some contexts).
- But the best choice is re-: refix (though rare).

Wait — let’s think differently. The intended word is likely "refix", but it's not common.

Actually, "disfix" isn’t valid.

But "unfix" is not standard.

Wait — perhaps "pre-" → prefix ✔

Yes! pre- + fix = prefix → prefix (a common word)

✔ So: pre- → prefix

> Answer: pre-fix

---

#### 2. ___ sense
- dis- → dis-sense? No
- mis- → mis-sense? Not a word
- il- → il-sense? No
- in- → in-sense? No
- non- → non-sense ✔
- im- → im-sense? No
- un- → un-sense? No
- pre- → pre-sense? No
- re- → re-sense? No
- with- → with-sense? No

✔ non-sense → nonsense

> Answer: non-sense

---

#### 3. ___ happy
- un- → unhappy ✔
- dis- → dishappy? No
- in- → inhappy? No
- im- → imhappy? No
- il- → ilhappy? No
- mis- → mishappy? No
- pre- → prehappy? No
- re- → rehappy? No
- ex- → exhappy? No
- de- → dehappy? No

✔ Only un- works: unhappy

> Answer: un-happy

---

#### 4. ___ mind
- dis- → dis-mind? No
- re- → re-mind ✔ → remind
- un- → unmind? No
- pre- → pre-mind? No
- mis- → mis-mind? No
- de- → de-mind? No
- ex- → ex-mind? No
- im- → im-mind? No

✔ re- → remind

> Answer: re-mind

---

#### 5. ___ pert
- im- → impert? No
- in- → inpert? No
- dis- → dispert? No
- mis- → mispert? No
- re- → repert? No
- un- → unpert? No
- pre- → prepert? No
- de- → depert? No
- ex- → expert ✔ → expert

✔ ex- → expert

> Answer: ex-pert

---

#### 6. ___ respect
- dis- → disrespect ✔
- un- → unrespect? Not standard
- mis- → misrespect? No
- re- → respect already has "re"? No
- pre- → pre-respect? No
- non- → nonrespect? No

✔ dis- → disrespect

> Answer: dis-respect

---

#### 7. ___ equal
- in- → inequal? No
- im- → im-equal? No
- il- → il-equal? No
- dis- → dis-equal? No
- un- → un-equal ✔ → unequal
- non- → non-equal? Acceptable in formal writing
- in- → in-equal? No
- mis- → mis-equal? No

✔ un- or non- both work:
- unequal
- nonequal (less common)

So both un- and non- are possible.

> Answer: un- or non- equal

---

#### 8. ___ legal
- il- → illegal ✔
- in- → inlegal? No
- im- → imlegal? No
- dis- → dislegal? No
- un- → unlegal? No
- non- → nonlegal? Sometimes used
- mis- → mislegal? No

✔ il- → illegal

> Answer: il-legal

---

#### 9. ___ fiction
- pre- → pre-fiction? No
- re- → re-fiction? No
- dis- → disfiction? No
- un- → unfiction? No
- non- → non-fiction ✔
- mis- → misfiction? No
- im- → imfiction? No

✔ non- → non-fiction

> Answer: non-fiction

---

#### 10. ___ prove
- dis- → disprove ✔
- re- → reprove ✔ (means to scold)
- un- → unprove? No
- pre- → preprove? No
- mis- → misprove? No
- de- → deprove? No

✔ Two answers: dis- and re-
- disprove = show something is false
- reprove = scold

> Answer: dis- or re- prove

---

#### 11. ___ frost
- re- → refrost? Possible (e.g., refreeze)
- de- → defrost ✔
- pre- → prefrost? No
- un- → unfrost? No
- dis- → disfrost? No

✔ de- → defrost

> Answer: de-frost

---

#### 12. ___ ceed
- pro-? Not in bank
- pre- → precede ✔
- re- → recede ✔
- dis- → disceed? No
- de- → deceed? No
- with- → withceeed? No

✔ pre- → precede
✔ re- → recede

Both are valid.

> Answer: pre- or re- ceed

---

#### 13. ___ lucky
- un- → unlucky ✔
- dis- → dislucky? No
- in- → inlucky? No
- il- → illucky? No
- mis- → mislucky? No
- non- → nonlucky? Possible but rare
- im- → imlucky? No

✔ un- → unlucky

> Answer: un-lucky

---

#### 14. ___ lead
- mis- → mislead ✔
- dis- → dislead? No
- re- → relead? No
- pre- → prelead? No
- un- → unlead? No
- ex- → exlead? No
- de- → delead? No
- with- → withlead? No

✔ mis- → mislead

> Answer: mis-lead

---

#### 15. ___ fat
- over-? Not in bank
- ex- → ex-fat? No
- un- → unfat? No
- de- → defat? Not common
- dis- → disfat? No
- im- → imfat? No
- in- → infat? No
- non- → nonfat ✔ (as in "nonfat milk")
- il- → ilfat? No

✔ non- → nonfat

> Answer: non-fat

---

#### 16. ___ fair
- un- → unfair ✔
- dis- → disfair? No
- in- → infair? No
- im- → imfair? No
- il- → ilfair? No
- mis- → misfair? No
- pre- → prefair? No
- re- → refair? No

✔ un- → unfair

> Answer: un-fair

---

#### 17. ___ gust
- re- → regust? No
- dis- → disgust ✔
- pre- → pregust? No
- un- → ungust? No
- mis- → misgust? No
- de- → degust? No
- with- → withgust? No

✔ dis- → disgust

> Answer: dis-gust

---

#### 18. ___ hold
- with- → withhold ✔
- re- → rehold? No
- dis- → dishold? No
- un- → unhold? No
- pre- → prehold? No
- de- → dehold? No
- mis- → mishold? No

✔ with- → withhold

> Answer: with-hold

---

#### 19. ___ place
- re- → replace ✔
- dis- → displace ✔
- pre- → preplace? No
- un- → unplace? No
- de- → deplace? No
- mis- → misplace ✔
- in- → inplace? No

✔ dis-, re-, mis- all work:
- displace = move from position
- replace = put back
- misplace = put in wrong place

> Answer: dis-, re-, or mis- place

---

#### 20. ___ usual
- un- → unusual ✔
- dis- → disusual? No
- in- → inusual? No
- im- → imusual? No
- il- → ilusual? No
- mis- → misusual? No
- non- → nonusual? Rare
- pre- → preusual? No

✔ un- → unusual

> Answer: un-usual

---

#### 21. ___ portant
- im- → important ✔
- in- → inportant? No
- il- → ilportant? No
- dis- → disportant? No
- un- → unportant? No
- mis- → misportant? No
- non- → nonportant? No
- pre- → preportant? No

✔ im- → important

> Answer: im-portant

---

#### 22. ___ draw
- re- → redraw ✔
- dis- → disdraw? No
- un- → undraw? No
- pre- → predraw? No
- de- → dedraw? No
- with- → withdraw ✔
- mis- → misdraw? No
- ex- → exdraw? No

✔ re- → redraw
✔ with- → withdraw

> Answer: re- or with- draw

---

#### 23. ___ logical
- il- → illogical ✔
- in- → inlogical? No
- im- → imlogical? No
- dis- → dislogical? No
- un- → unlogical? No
- non- → nonlogical? Acceptable
- mis- → mislogical? No

✔ il- → illogical
✔ non- → nonlogical (sometimes used)

> Answer: il- or non- logical

---

#### 24. ___ trieve
- re- → retrieve ✔
- dis- → distrieve? No
- un- → untrieve? No
- pre- → pretrieve? No
- de- → detrieve? No
- mis- → mistrieve? No

✔ re- → retrieve

> Answer: re-trieve

---

#### 25. ___ visible
- in- → invisible ✔
- im- → imvisible? No
- il- → ilvisible? No
- un- → unvisible? No
- dis- → disvisible? No
- non- → nonvisible? Possible
- pre- → previsible? No

✔ in- → invisible
✔ non- → nonvisible (less common)

> Answer: in- or non- visible

---

#### 26. ___ play
- re- → replay ✔
- dis- → display? No
- un- → unplay? No
- pre- → preplay? No
- mis- → misplay? No
- ex- → explay? No
- de- → deplay? No

✔ re- → replay

> Answer: re-play

---

#### 27. ___ cellent
- ex- → excellent ✔
- in- → incellent? No
- im- → imcellent? No
- il- → ilcellent? No
- dis- → discellent? No
- un- → uncellent? No
- mis- → miscellent? No

✔ ex- → excellent

> Answer: ex-cellent

---

#### 28. ___ view
- re- → review ✔
- pre- → preview ✔
- dis- → disview? No
- un- → unview? No
- with- → withview? No
- de- → deview? No
- mis- → misview? No

✔ re- → review
✔ pre- → preview

> Answer: re- or pre- view

---

#### 29. ___ code
- re- → recode ✔
- de- → decode ✔
- dis- → discode? No
- un- → uncode? No
- pre- → precode? No
- mis- → miscode? No
- ex- → excode? No

✔ re- → recode
✔ de- → decode

> Answer: re- or de- code

---

#### 30. ___ flex
- re- → reflex? No (reflex is a noun)
- dis- → disflex? No
- in- → inflex? No
- im- → imflex? No
- un- → unflex? No
- pre- → preflex? No
- de- → deflex? No
- with- → withflex? No
- ex- → exflex? No
- in- → inflexible → but here it's just "flex"

Wait — inflexible uses in-, but the root is flex, so:

- in- → inflex? No
- im- → imflex? No
- dis- → disflex? No
- un- → unflex? No

But "inflex" is not a word.

Wait — "flex" can be part of "flexible", but we need a prefix.

Actually, "inflexible" → in- + flexible → but here it's ___ flex, so maybe in-?

But "inflex" isn't a word.

Wait — "inflex" is not standard.

But "disflex"? No.

Wait — perhaps "re-flex"? No.

Another idea: "unflex"? No.

Wait — "pre- → preflex? No.

But "flex" is short for "flexible", but not a standalone word.

Wait — "reflex" is a word, but "re-" + flex = reflex? Not really.

Actually, "reflex" comes from Latin, not from "re-" + "flex".

But "inflexible" uses in-.

But the blank is before "flex", so if we assume "flex" is the root, then:

- in- → inflex? No
- im- → imflex? No
- dis- → disflex? No

Wait — "disflex" isn't a word.

But "flex" might be shorthand for "flexible", so "inflexible" → in- + flexible

But here it's ___ flex, so perhaps in-?

But "inflex" is not a word.

Alternatively, "reflex" — but that's not formed with re- + flex.

Wait — "re-" → re-flex? No.

But "unflex"? No.

Wait — "disflex"? No.

Wait — "pre-" → preflex? No.

Wait — "de-" → deflex? No.

Wait — "im-" → imflex? No.

Wait — "in-" → inflex? No.

But "inflexible" is a word, and "in-" is the prefix.

But "inflex" is not a word.

Wait — maybe the intended word is "inflex" as in "inflexibility", but no.

Wait — perhaps "dis-" → disflex? No.

Wait — "un-" → unflex? No.

Wait — actually, "flex" might be "flexible", so "inflexible" → in-

But the word is ___ flex, so maybe "in-"?

But "inflex" is not a word.

Wait — perhaps it's "inflex" as a typo or abbreviation?

No.

Wait — another possibility: "re-" → re-flex? No.

Wait — "pre-" → pre-flex? No.

Wait — "dis-" → dis-flex? No.

Wait — "im-" → im-flex? No.

Wait — "un-" → un-flex? No.

Wait — "in-" → in-flex? No.

Wait — "non-" → non-flex? No.

Wait — "mis-" → mis-flex? No.

Wait — "de-" → de-flex? No.

Wait — "re-" → re-flex? No.

Wait — "ex-" → ex-flex? No.

Wait — "with-" → with-flex? No.

Wait — "pre-" → pre-flex? No.

Wait — "re-" → re-flex? No.

Wait — "dis-" → dis-flex? No.

Wait — "in-" → in-flex? No.

Wait — "im-" → im-flex? No.

Wait — "il-" → il-flex? No.

Wait — "dis-" → disflex? No.

Wait — "in-" → inflex? No.

Wait — "re-" → reflex? But reflex is not re- + flex.

Wait — "reflex" is from Latin *reflexus*, meaning "bent back", so re- + flex = reflex?

Yes — re- + flex = reflex

So re-flex → reflex

✔ re- → reflex

> Answer: re-flex

---

✔ Final Answers:

| Word | Answer(s) |
|--------------|-----------|
| ___ fix | pre- |
| ___ sense | non- |
| ___ happy | un- |
| ___ mind | re- |
| ___ pert | ex- |
| ___ respect | dis- |
| ___ equal | un- or non- |
| ___ legal | il- |
| ___ fiction | non- |
| ___ prove | dis- or re- |
| ___ frost | de- |
| ___ ceed | pre- or re- |
| ___ lucky | un- |
| ___ lead | mis- |
| ___ fat | non- |
| ___ fair | un- |
| ___ gust | dis- |
| ___ hold | with- |
| ___ place | dis-, re-, or mis- |
| ___ usual | un- |
| ___ portant | im- |
| ___ draw | re- or with- |
| ___ logical | il- or non- |
| ___ trieve | re- |
| ___ visible | in- or non- |
| ___ play | re- |
| ___ cellent | ex- |
| ___ view | re- or pre- |
| ___ code | re- or de- |
| ___ flex | re- |

---

✔ Summary of Answers:

```
pre-fix
non-sense
un-happy
re-mind
ex-pert
dis-respect
un- or non- equal
il-legal
non-fiction
dis- or re- prove
de-frost
pre- or re- ceed
un-lucky
mis-lead
non-fat
un-fair
dis-gust
with-hold
dis-, re-, or mis- place
un-usual
im-portant
re- or with- draw
il- or non- logical
re-trieve
in- or non- visible
re-play
ex-cellent
re- or pre- view
re- or de- code
re-flex
```

This completes the worksheet!