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1. This is the most interesting story she has ever read. 

2. They haven't played football since the summer. 

3. Mr. John last did morning exercises last year. 

4. They have never conducted any tasks easier than that one. 

5. She hasn't worked for this company since 1998.

6. I started studying Math when I was in year 1 in the primary school. 

7. We last saw each other last month. 

8. She has sung since she was five years old. 

9. They haven't driven their car to work for ten years. 

10. This mission is the most challenging mission they have ever faced. 

11. They have worked for our school since June 2015.

12. That match is the most thrilling match we have ever watched. 

13. We began to practise doing Judo when we were 8 years old. 

14. This is the most important thing.

15. Mrs. Thu Hien is the most attractive person can sing this song.

1. This is the most interesting story she has ever read. 

2. They haven't played football since the summer. 

3. Mr. John last did morning exercises last year. 

4. They have never conducted any tasks easier than that one. 

5. She hasn't worked for this company since 1998.

6. I started studying Math when I was in year 1 in the primary school. 

7. We last saw each other last month. 

Sr, mik làm đc chắc từng này hoi

                           ~~alierchensama~~~