EX4. Gạch lỗi sai trong các câu sau rồi sửa lại cho đúng.
1. My friend and I was at the hairdresser's yesterday.
2. My sister in law used to had long hair but now she has short hair.
3. Did your father worked in a tobacco factory before he retired?
4. Why you didn't come to the meeting last week?
5. My best friend and I use to hated each other when we first met.
6. Was Anna be successful with her project last week?
7. Yesterday morning I readed several chapters of the book "The little prince".
8. Last summer we involved in community service in our neighborhood, so we did go on holiday,