1.This is the first time I have eaten this kind of food
2.My brother has been working in that factory for five years
3.When did they buid the house?
4. She hasn't gone out with him for twp years
5.We have been lving here since 1997
6.I haven't seen Minh for six months
7.I haven't spoken to her for three years
8.It's the first time I have eaten this kind of cake
9.It’s the first time we have met such a famous singer
10.When did you use the car?
It's the first time=This is the first time+MĐ hiện tại hoàn thành
S+have/has not+V3/ed:chỉ việc kể từ lúc đó đến nay tôi chưa gặp anh ấy, hay cô ấy
từ câu S+started/began+Ving+time ago
->S+have/has been+Ving+for time