Rewrite the sentences

37) How long have she lived in Danang?
When...............
38) He hasn't smoked for 2 years.
He last
39) I have learnt French for 3 years.
I started
40) This last time Tom came back to his hometown was 5 years ago.
Tom hasn't......
41) He started working as a teacher 6 months ago.
He has...
42) It has been 3 years since we first went to Japan.
We have.......
43) I last had my hair cut in June.
I haven't...
44) The last time we met was 2 years ago.
We haven't.........
45) It has been a long time since we last called each other.
We
haven't......
46) When did you have 10 scores in Math?
How long..........
47) This is the first time I had such an exciting trip
I have never........
48) I haven't seen Anna for 10 days.
The last...
49) Today is Sunday. I haven't taken a bath since Thursday.
It is..........
50) I haven't met her for 5 days.
The last time..........
...?