1 The last time she taught English me we was 5 months ago

=>She hasn't..taught me English for 5 month.......

2 It is a long time since we last met.

=>We haven't.met for a long time.......

3 When did you have it ?

=> How long.have you had it.?.....

4 This is the first time. I had such a delicious meal.

=> I haven't..had a delicous meal before........

5 I haven't taken a bath since Monday 

=> It is .the last time I have taken a bath since Monday......

6 It's 2 years since I had a punture

=> I haven't .had a puniture for 2 years....

7 It's 2 month since he earned any money

=> He has .earned money for 2 months...

8 He last shaved the day before yesterday

=> He hasn't.shaved for 2 days....

9 I last drank champagne at my brother's wedding

=> I haven't .drunk champagne since my brother's wedding........