1. Hour (Bạn trên sai rồi nhé, từ hour nghĩa là giờ nên âm /h/ là âm câm)
2. Can you tell me what is her name? (Bạn có thể nói cho tôi tên của cô ấy ko?)
3. We take part in most youth activities of our school.
4. Tam was playing chess while his friends studied (Quá khứ tiếp diễn khi dùng when/ while đi với quá khứ đơn. Bạn trên sai rồi)
5. They didn't know how to help the children.
6. Mai bunt her hand when she was cooking.
7. May father used to smoke a lot, but now he doesn't.
8. Nam told Ba what to do this afternoon.
9. They promised not to be late for school (Họ hứa sẽ ko đến trường muộn)
10. They are good friends. They have know for a long time.