Viết lại câu sao cho nghĩa không đổi

1. It’s wrong of us to throw rubbish.

èWe mustn’t.............................................................................

2. Doing morning exercises every morning is good for you.

¦ You should........................................................................................................................

 3. Nobody in my class is as tall as Nam.

 ¦ Nam is  .............................................................................................................................

4. This car is cheaper than that one.

→ That car is ……………………………………………………………

5. How many times a week do you go to the English Club?

→ How often……………………………………………………………………

6. My brother usually goes to school on foot.

→ My brother usually …………………………………………………………

7.I am tired, so I will go to bed early.(because)

==> …………………………………………………………………………………