Compound Sentences worksheet for students to practice forming compound sentences using conjunctions.

Let's solve this Compound Sentences worksheet step by step. The goal is to fill in the blanks with the appropriate conjunctions: for, and, but, or, yet, so, to create meaningful compound sentences.

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🔹 Understanding the Conjunctions:

- and – adds information (similar actions or ideas)
- but – shows contrast
- or – presents a choice
- yet – shows contrast (more formal than "but")
- so – shows cause and effect
- for – gives a reason (less common; often used in formal writing)

Now let’s go through each sentence:

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1. She likes to swim ________ he prefers to hike.

- Two people have different preferences → contrast
- Best fit: but
✔ She likes to swim but he prefers to hike.

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2. The cat purred softly ________ the dog wagged its tail.

- Two things happening at the same time → adding detail
- Best fit: and
✔ The cat purred softly and the dog wagged its tail.

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3. The movie was scary ________ I couldn't get to sleep.

- The movie being scary caused the inability to sleep → cause and effect
- Best fit: so
✔ The movie was scary so I couldn't get to sleep.

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4. They went to the park ________ played on the swings.

- Two actions done in sequence → addition
- Best fit: and
✔ They went to the park and played on the swings.

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5. The book was interesting ________ the ending was disappointinging.

- Contrasting ideas: good vs. bad
- Best fit: but
✔ The book was interesting but the ending was disappointinging.

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6. He saved his money ________ he bought a new toy.

- Saving money led to buying the toy → cause and effect
- Best fit: so
✔ He saved his money so he bought a new toy.

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7. She bought an umbrella ________ it was going to rain.

- She bought the umbrella *because* it was going to rain → reason
- Best fit: for
✔ She bought an umbrella for it was going to rain.
*(Note: “for” is less common here, but grammatically correct. Alternatively, “because” would be more natural, but we're limited to the given words.)*

⚠️ However, "so" might seem better, but “so” implies result, not reason. Here, the reason is given *after* the action. So "for" is correct because it introduces a reason (like "because").

✔ She bought an umbrella for it was going to rain.

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8. She walked happily ________ her friend was sad.

- Contrast between her happiness and her friend’s sadness
- Best fit: but
✔ She walked happily but her friend was sad.

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9. She baked a cake ________ decorated it beautifully.

- Two actions in sequence → addition
- Best fit: and
✔ She baked a cake and decorated it beautifully.

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10. He studied for the test ________ he was worried about his marks.

- He studied *because* he was worried → reason
- Best fit: for
✔ He studied for the test for he was worried about his marks.

*(Again, "for" is formal, but correct here. "Because" would be more natural, but we must use the provided words.)*

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✔ Final Answers:

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

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📝 Summary of Completed Sentences:

1. She likes to swim but he prefers to hike.
2. The cat purred softly and the dog wagged its tail.
3. The movie was scary so I couldn't get to sleep.
4. They went to the park and played on the swings.
5. The book was interesting but the ending was disappointinging.
6. He saved his money so he bought a new toy.
7. She bought an umbrella for it was going to rain.
8. She walked happily but her friend was sad.
9. She baked a cake and decorated it beautifully.
10. He studied for the test for he was worried about his marks.

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💡 Tips:

- Use but/yet for contrast.
- Use and for addition.
- Use so for result (cause → effect).
- Use for for reason (often after the main clause).

This exercise helps build strong, expressive writing using compound sentences!