Coordinating conjunctions online exercise for 3rd Grade | Live ... - Free Printable

Let's solve this worksheet step by step. The goal is to complete each sentence using the correct coordinating conjunction: and, or, but, or so.

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🔹 Understanding the Conjunctions:

- and – used to add information (joining similar ideas)
- or – used to present a choice or alternative
- but – used to show contrast (opposite ideas)
- so – used to show cause and effect (result)

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Now, let’s go through each sentence:

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1. She says that she loves her dog, ______ she never plays with it.
→ There's a contrast between loving the dog and not playing with it.
✔ but

2. You must study for the test, ______ you will fail.
→ This shows a cause-effect relationship: if you don’t study, you’ll fail.
✔ or (because "or" introduces the consequence of not studying)
> Note: "or" here means "otherwise" — *study, or else you'll fail.*

3. Mom said we must wash the dishes ______ clean our rooms.
→ Two things that must be done — both are required.
✔ and

4. Would you like apples, ______ do you prefer bananas?
→ This is a choice between two options.
✔ or

5. I feel sick, ______ I can still work.
→ There's a contrast between feeling sick and being able to work.
✔ but

6. I am a vegetarian, ______ I don't eat any meat.
→ This explains why — being a vegetarian means not eating meat.
✔ so (because being a vegetarian leads to not eating meat)

7. I was shopping all day, ______ I did not have time to do my homework.
→ Shopping caused no time for homework — cause and effect.
✔ so

8. I like to eat healthy, ______ I find it very difficult.
→ Contrast: wants to eat healthy, but finds it hard.
✔ but

9. I was late for school, ______ my teacher made me stay after class.
→ Being late caused the punishment — result.
✔ so

10. He took me to the shop, ______ bought me a new dress.
→ Two actions that happened in sequence, both positive.
✔ and

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✔ Final Answers:

1. but
2. or
3. and
4. or
5. but
6. so
7. so
8. but
9. so
10. and

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📝 Summary:

| Sentence | Correct Conjunction |
|--------|---------------------|
| 1 | but |
| 2 | or |
| 3 | and |
| 4 | or |
| 5 | but |
| 6 | so |
| 7 | so |
| 8 | but |
| 9 | so |
| 10 | and |

This exercise helps practice understanding how different conjunctions connect ideas based on addition, contrast, choice, or cause-effect relationships.