Dưới đây là các câu tương đương với thì hiện tại hoàn thành cho các câu trong bài:

10. My children haven't been taken to the supermarket since they were in grade 5.
- **The last time** my children **were taken** to the supermarket was in grade 5.

11. They started studying Spanish and Chinese 5 years ago.
- **They have** studied Spanish and Chinese for 5 years.

12. My younger sister has not had her hair cut for over five months.
- **The last time** my younger sister **had her hair cut** was over five months ago.

13. My friend has never seen such a beautiful girl in his life.
- **This is the first time** my friend **has seen** such a beautiful girl.

14. The last time John played the piano was in 2015.
- **John hasn’t played** the piano since 2015.

15. It’s the first time we have ever met such a kind person.
- **We have never** met such a kind person before.

Hy vọng những câu trả lời này giúp bạn!