1.  She eats more chocolate than I.

I ………………………………………………………

2.  Vinh keeps forgetting his homework.

Vinh is …………………………………………………………………………

3.  Keeping the environment clean is very important. It’s…………………………………………………………………………

4.  No one helped Lan to do the homework.

Lan ……………………………………………………

5.  It’s three years since I last spoke to her.

I haven’t………………………………………………………………………………

6.  Tam doesn’t type as fast as she used to.

Tam used …………………………………………………………………………………………

7.  How long is it since you used the car?

When ………………………………………………………………

8.  We started living here 15 years ago.

We have………………………………………………………………………………

9.   Let’s meet inside the center at the cafe corner? How………………………………………………………………………………………………

10.  Nam is very strong, he can do heavy work.