Viết lại những câu dưới đây sao cho nghĩa không đổi

Viết lại những câu dưới đây sao cho nghĩa không đổi
1. This last time Tom came back to his hometown was 5 years ago.
=> Tom
hasn't........
2. He started working as a teacher 6 months ago.
=> He
has........
3. It has been 3 years since we first went to Japan.
=> We
have....
4. I last had my hair cut in June.
>I
haven't........
10.
5. The last time we met was 2 years ago.
=> We
haven't..........
6. It has been a long time since we last called each other.
=> We
haven't...........
7. When did you have 10 scores in Math?
=> How
long......
8. This is the first time I had such an exciting trip
=>I have
never......
9. I haven't seen Anna for 10 days.
=> The
last.......
Today is Sunday. I haven't taken a bath since Thursday.