21.The last time we met was 2 years ago.=> We haven’t
22.It has been a long time since we last called each other.=> We haven’t
23.When did you have 10 scores in Math?=> How long…..?
24.This is the first time I had such an exciting trip=>I have never
25.I haven’t seen Anna for 10 days.=> The last
26.Today is Sunday. I haven’t taken a bath since Thursday.=> It is
27.This is the first time he went abroad.-> He hasn’t
28.She started driving 1 month ago.-> She has
29. We began eating when it started to rain.-> We have
30.I last had my hair cut when I left her.