Rewrite the sentences without changing the meaning

----- Nội dung dịch tự động từ ảnh -----
Exercise 1: Rewrite the sentences without changing the meaning.
1. This last time she came back to her hometown was 4 years ago.
=> She hasn't...
2. He started working as a doctor 3 months ago.
=> He has....
3. It has been 5 years since we last flew to Singapore.
=> We haven't..........
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. We have read that book for 4 days.
=> We.....
9. I haven't seen him for 8 days.
=> The last.......