1. I haven't written that shirt since May.

2. It's ages since we last met each other.

3. Travelling by train is not as expensive as travelling by air.

4. What is the matter with this TV ?

5. When are John and Mary getting married ?

6. He can make most people understand him when he speaks English.

7. She doesn't study hard enough.

8. The car is too expensive for us to buy it.

=>
VII/
1. I haven't worn that shirt since May.
2. It's ages since we (last) met each other.
3. Travelling by train is not as expensive as travelling by air.
4. What is the matter with this TV?
5. When are John and Mary going to get married?
6. He can make most people understand when he speaks English.
7. She doesn't have to study harder.
8. The car is too expensive for us to buy.

VIII/
1. These exercises are too difficult for students to do without mistakes.
2. I haven't seen Mai since we left school.