1. I **ate** pizza three hours ago. (Correction: use the correct verb form
) 2. She **worked** in Hanoi last month. (Correction: change the question mark to a period)
3. Did you **study** for the exam? (Correction: use the base form of the verb after "did")

4. He **went** to school late yesterday. (Correction: use the correct past tense form of "go")
5. I didn’t **do** my homework yesterday evening. (Correction: use the correct verb “do”)
6. They weren’t **cleaning** their house last Thursday. (Correction: use the correct verb form)
7. He **helped** me with my exercise. (Correction: use the past tense form instead of "was helped")
8. **Where did** you go this morning? (Correction: add "did" for the question form)
9. **Did** your dad **watch** TV yesterday? (Correction: change "were" to "did" and use base form "watch")
10. We didn’t **feel** happy because we failed the test. (Correction: use the correct verb "feel")