1. It is good for you to do exercise every morning. 

2. How much do those books cost?

3. What is your height?

4. What is the width of the streets?

5. He is a bad cook. 

6. They travelled to USA by plane last year. 

7. He. (Đề thiếu dữ kiện, bạn hỏi lại giáo viên nhé)

8. Mr John goes t school on foot because his house is near it. 

9. Because he is poor, he has to work hard. 

10. It rained hard but the boys played football. 

11. He wasn't able to come into his house because of losing the key. 

12. Lan is keen on watching cartoon (keen on Ving= enjoy Ving)

13. He has to do his homework every day. 

14. I don't have to go swimming. 

15. Unless he has much money, he won't travel a lot. 

16. It is important to learn English. 

17. Unless they arrive on time, we'll leave. 

18. If I learn hard, my parents will be happy hoặc If I don't learn hard, my parents will be sad