Mọi người giải giúp mình với ạ

Các công thức đổi HTHT - QKĐ

Type 1: 

S + has/have + not + V3/ed + for/since + time 

--> S + last + V2/ed 

--> The last time + S+ V2/ed + was + time 

--> It is / has been + time + since + S+ (last) + V2/ed 

Type 2: 

How long + has/have + S+ V3/ed?

--> When + did + S + V1?

--> How long is it + since + S+ V2/ed ?

Type 3:

S + has/have + V3/ed + for/since + time 

--> S + started / began + to V / Ving 

--> It is / has been + time + since + S+ V2/ed 

Type 4: 

S + has/have + not/never + V3/ed + ... before

--> This/It is the first time + S+ has/have+ V3/ed

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2. The last time my brother played football was when he graduated from high school. 

3. They have worked on this project for six months. 

4. It's been two weeks since she last went to the gym.

5. The last time we had a family vacation together was five years ago when we went to the beach.

6. This is the first time he has eaten such a delicious meal. 

7. I haven't seen my childhood friend since the school reunion.

8. It's five years since I last rode a bicycle. 

9. The last time we watched a movie together was last Christmas. 

10. It's more than a year since she last had a haircut. 

11. We have not celebrated her birthday for three years. 

12. Is this the first time you have been to a live concert? 

13. They have not launched the new product for almost a year. 

14. The last time I attended a music festival was when I was in college. 

15. We have not met since John's wedding. 

16. The last time they went to the museum was their last school trip. 

17. I have driven to work for two years. 

18. This is the first time she has tried ice skating. 

19. I haven't read a novel for over a year. 

20. The last time we went to this restaurant was when it reopened after the renovation.