Viết lại câu sao cho nghĩa ko đổi

Ex 1:Viết lại câu sao cho nghĩa ko đổi.
1. This last time she came back to her homtown was 4 years ago.
=> She hasn't.........................
2. He startes working as a bank cleck 3 months ago.
=> He has .............................
3. Is has been 5 years since we first flew to Singapore.
=> We have ..........................
4. I last had my hair cut in November.
=> I haven't ..........................
5. The last time we called each other was 5 months ago.
=> We haven't ......................
6. It is a long time since we last met.
=> We haven't ......................
7. When did you have it?
=> How long..........................
8. This is the first time I haf such a delicious meal.
=> I have never ....................
9. I haven't seen him for 8 days.
=> The last ...........................
10. Today is Saturday. I haven't taken a bath since Wednesday.
=> Is is .................................
11. She startes to live in Hanoi 2 years ago ( for )
=>..............
12. He began to stusy English whan he was young ( since )
=>..............
13. I have never eaten this kind of food before ( This is )
=>..............
14. I have never seen such a beautiful girl before ( She is )
=>..............
15. This is best novel I hve ever read ( before )
=>...............