Grammar practice worksheet with sentences requiring correct verb forms.

To solve these sentences, we need to choose the correct verb form based on the clues in each sentence. The main tenses used here are:

1. Present Simple: Used for habits, routines, facts, and things that happen "often," "usually," or on specific days (like "on Mondays").
* *Rule*: Add -s or -es if the subject is He/She/It (e.g., *he sits*). Do not add -s for I/You/We/They (e.g., *they sit*).
2. Present Continuous: Used for actions happening right now, at this moment, or temporary situations. Look for words like "now," "at the moment," "look," or "listen."
* *Rule*: Use am/is/are + verb-ing (e.g., *he is sitting*).
3. Future Simple: Used for predictions or decisions made at the moment of speaking, often with "soon."
* *Rule*: Use will + verb (e.g., *will come*).

Let's go through them one by one:

1. "What is he doing? He \_\_\_\_\_ at his desk. (sit)"
* Clue: "What is he doing?" asks about an action happening right now.
* Tense: Present Continuous.
* Subject: He → needs "is".
* Answer: is sitting

2. "Listen, someone \_\_\_\_\_ at the door. (knock)"
* Clue: "Listen" implies the action is happening right now.
* Tense: Present Continuous.
* Subject: Someone (singular) → needs "is".
* Answer: is knocking

3. "On my way home I usually \_\_\_\_\_ to drink a cup of coffee. (stop)"
* Clue: "usually" indicates a habit/routine.
* Tense: Present Simple.
* Subject: I → no 's' needed.
* Answer: stop

4. "Architects \_\_\_\_\_ plans of the buildings. (make)"
* Clue: This is a general fact about what architects do.
* Tense: Present Simple.
* Subject: Architects (plural/They) → no 's' needed.
* Answer: make

5. "Look at Betty. she \_\_\_\_\_ the piano. (play)"
* Clue: "Look at..." implies the action is happening right now.
* Tense: Present Continuous.
* Subject: She → needs "is".
* Answer: is playing

6. "At this moment I \_\_\_\_\_ my pupils' exercises. (correct)"
* Clue: "At this moment" means right now.
* Tense: Present Continuous.
* Subject: I → needs "am".
* Answer: am correcting

7. "Where are you? I \_\_\_\_\_ my lessons in the study. (prepare)"
* Clue: "Where are you?" asks about current location/activity.
* Tense: Present Continuous.
* Subject: I → needs "am".
* Answer: am preparing

8. "She \_\_\_\_\_ a lot of money. (earn)"
* Clue: This describes a general fact or state about her job/income. No "now" or "at the moment" clue.
* Tense: Present Simple.
* Subject: She → needs 's'.
* Answer: earns

9. "Chris \_\_\_\_\_ near the table. (stand)"
* Clue: Without time words like "usually," this typically describes what is happening in the current scene (similar to "Look at Chris"). In these mixed exercises, single actions without frequency adverbs are often continuous.
* Tense: Present Continuous.
* Subject: Chris (He) → needs "is".
* Answer: is standing

10. "We often \_\_\_\_\_ tea for breakfast. (take)"
* Clue: "often" indicates a habit.
* Tense: Present Simple.
* Subject: We → no 's' needed.
* Answer: take

11. "William \_\_\_\_\_ to our workshop on Mondays. (come)"
* Clue: "on Mondays" indicates a weekly routine.
* Tense: Present Simple.
* Subject: William (He) → needs 's'.
* Answer: comes

12. "Let's wait a moment still. Tom \_\_\_\_\_ soon. (come)"
* Clue: "soon" refers to the future.
* Tense: Future Simple.
* Answer: will come

13. "I must run home, mother \_\_\_\_\_ for me. (wait)"
* Clue: The reason for running home is that the action is happening right now.
* Tense: Present Continuous.
* Subject: Mother (She) → needs "is".
* Answer: is waiting

14. "The telephone often \_\_\_\_\_ during supper. (ring)"
* Clue: "often" indicates a repeated occurrence/habit.
* Tense: Present Simple.
* Subject: The telephone (It) → needs 's'.
* Answer: rings

15. "Stephen \_\_\_\_\_ a cigarette now. (smoke)"
* Clue: "now" indicates the action is happening at this moment.
* Tense: Present Continuous.
* Subject: Stephen (He) → needs "is".
* Answer: is smoking

Final Answer:
1. is sitting
2. is knocking
3. stop
4. make
5. is playing
6. am correcting
7. am preparing
8. earns
9. is standing
10. take
11. comes
12. will come
13. is waiting
14. rings
15. is smoking