Dưới đây là các câu đã gạch lỗi sai và sửa lại cho đúng:

1. **Sai:** My friend and I was at the hairdresser’s yesterday.
**Sửa:** My friend and I **were** at the hairdresser’s yesterday.

2. **Sai:** My sister in law used to had long hair but now she has short hair.
**Sửa:** My sister-in-law used to **have** long hair, but now she **has** short hair.

3. **Sai:** Did your father worked in a tobacco factory before he retired?
**Sửa:** Did your father **work** in a tobacco factory before he retired?

4. **Sai:** Why you didn’t come to the meeting last week?
**Sửa:** Why **didn’t you come** to the meeting last week?

5. **Sai:** My best friend and I use to hated each other when we first met.
**Sửa:** My best friend and I **used to hate** each other when we first met.

6. **Sai:** Was Anna be successful with her project last week?
**Sửa:** Was Anna **successful** with her project last week?

7. **Sai:** Yesterday morning I readed several chapters of the book “The little prince.”
**Sửa:** Yesterday morning I **read** several chapters of the book “The Little Prince.”

8. **Sai:** Last summer we involved in community service in our neighborhood, so we did go on holiday.
**Sửa:** Last summer we **were involved** in community service in our neighborhood, so we **didn't go** on holiday.

Hy vọng điều này giúp ích cho bạn!