X. Mỗi câu sau có một lỗi sai. Hãy tìm và sửa các lỗi đó:
1. don't → didn't
2. are → were
3. take → to take
4. after → in
5. stay → to stay
6. having headache → having a headache
7. wait → to wait
8. at → with
XI. Viết lại các câu sau bắt đầu bằng những từ gọi ý sao cho nghĩa không đổi:
1. I am one meter and 50 centimeters tall.
2. Nam's height is one meter forty-five centimeters.
3. How heavy are you?
4. Don't forget to have a medical check-up every six months.
5. What is your father's weight?
