Linking Ideas Clearly: Introduction to Complex Sentences for Grade 4  

This Grade 4 worksheet introduces students to complex sentences using the connectors because and although. Designed for upper primary learners, it helps children understand how ideas can be joined to show reason and contrast in a single sentence. Through guided identification, multiple choice practice, sentence correction, passage-based application, and creative writing, students gradually build confidence in forming clear and meaningful complex sentences.  

Why Complex Sentences Matter in Grammar?  

Complex sentences are an important step in grammar learning for Grade 4 students because:  

1. They help explain reasons using because.  

2. They show contrast or unexpected results using although.  

3. They allow students to combine ideas smoothly instead of writing short, choppy sentences.  

4. They improve clarity, detail, and flow in writing tasks and comprehension answers.  

What’s Inside This Worksheet?  

This worksheet includes five scaffolded activities that support early mastery of complex sentences:  

✏️ Exercise 1 – Underline the Connectors  

Students read sentences and underline the connectors because or although, learning to spot how ideas are linked. Example: “Riya waited because it rained.”  

🧠 Exercise 2 – Multiple Choice Questions  

Students choose the sentence that correctly shows cause or contrast, strengthening understanding of when to use because or although.  

✍️ Exercise 3 – Sentence Rewriting  

Learners correct sentences by replacing the connector with the correct one, helping them recognise meaning errors and fix them.  

📝 Exercise 4 – Fill in the Blanks (Passage-Based)  

Students complete a detailed passage by choosing suitable connectors, applying their learning in a real-life context.  

📖 Exercise 5 – Paragraph Writing  

Students write a short paragraph on “My Favorite Hobby and Why I Love It,” using both because and although to express ideas clearly.  

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ANSWER KEY

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Exercise 1 – Underline the Connectors  

1. because  

2. because  

3. although  

4. although  

5. although  

6. although  

7. although  

8. because  

9. because  

10. because  

Exercise 2 – Multiple Choice Questions  

1. b) Raj ran because it rained.  

2. a) Riya slept although noise grew.  

3. b) We left because it was hot.  

4. c) I will play although I finish.  

5. c) She cried because she won.  

6. a) Ravi stayed because he was ill.  

7. a) We went although it rained.  

8. a) I slept because I was tired.  

9. c) Plants grew because of rain.  

10. b) Riya smiled although she failed.  

Exercise 3 – Sentence Rewriting (Sample Corrections)  

1. Ravi played because it was sunny.  

2. Riya was happy because she won.  

3. Ravi cried although he got sweets.  

4. Meera stayed home although she was late.  

5. The game stopped because it rained.  

6. We went out although it was hot.  

7. She laughed because she was glad.  

8. Asha worked although she was ill.  

9. The dog barked although it was quiet.  

10. Raj stayed home because of rain.  

Exercise 4 – Fill in the Blanks (Sample Answers)  

because, because, Although, because, Although, because, because, Although, because  

Exercise 5 – Paragraph Writing  

Answers may vary.

Help your child learn to connect ideas smoothly and write stronger sentences with this Grade 4 Complex Sentences worksheet.  

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