1. How heavy is your suit case ? 

⇒ Hỏi về cân nặng: 

→ What is the weight of ___ ? ( Dùng cho vật )

⇔ What is TTSH/one's weight ? ( Dùng cho người ) 

→ How heavy + be + ____ ? 

2. It is not easy to speak English fluently. 

3. John used to smoke cigarettes when he was a young man. 

⇒ S + used to V + ___. 

4. Although he is rich, he never lends money. 

⇒ Although + S + V (chia theo thì thích hợp)

5. Do you mind helping me with this heavy bag ? 

⇒ Do you mind V_ing ___ ? : Bạn có phiền làm gì đó hay không ?

6.  This house was built ( by them ) in 1995.

⇒ Dạng câu bị động ở thì QKĐ: S + was/were + V_PP + ( by S/sb ) ____. 

7. If you don't get a bike, you can't go to school

1) How heavy is your suit case?

2) It is not easy to speak English fluently.

3) John used to smoke cigarettes when he was young.

4) Although he is rich, he never lends money.

5) Do you mind helping me with this heavy bag.

6) This house was built 1995.

7) If you don't get a bike, you can't go to school