Commas with Subordinating Conjunctions and Prepositions – Exercise 3

College Professors

Rewrite each sentence with the correct comma usage for subordinating conjunctions and prepositions. Use the “Check Answer” button to see mistakes and the “See Explanation” button for feedback.

1. After, the lecture ended, the professor answered questions.

2. The professor explained the concept with, great enthusiasm.

3. Because, the professor was late, the class started late.

4. The professor gave feedback on, the students’ essays.

5. If, you have questions, you can email the professor.

6. The professor discussed the topic in, great detail.

7. Although, the professor was strict, the students respected her.

8. The professor provided examples from, real-life situations.

9. Unless, you attend the lectures, you will miss important information.

10. The professor emphasized the importance of, critical thinking.