1.I have never eaten this kind of food before.

2.We haven’t met each other for a long time. 

3.He hasn’t come back his hometown since 1991.

4.Has he written his report yet?

5.I have been to London three times.

6.Have you gotten married yet?

7.This is the best novel I have ever read. 

8.I have never seen such a beautiful girl before. 

9.You have grown since the last time I saw you.

10.We have had many major problems while working on this project.

11.Have you been to Mexico in the last year?

12.My car has broken down three times this week.

13.I‘ve already made several calls.

14.We’ve just gotten home.

15.Have you ever gone ice skating?

16.The boys have never eaten sushi.

17.He has bought a camera.

18.Has he just left?

19.He has read 'War and Peace'.

20.How much money have you spent so far?