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1. How long ago did you start to learn French?

2. How long have you bought this house?

3. The last time I went to the zoo was six months ago.

4. This is the first time I have visited Hue.

5. My aunt has worked as an English teacher at school for six months.

6. How long is it since you heard from Robert?

7. How long has Mary listened to classical music?

8. Students don’t need to wear the uniforms today.

9. It is two years since I last visited London.

10. It has been over 20 years since he first came back to his village.

Các câu này thuộc dạng chuyển đổi thì HTHT sang QKĐ và ngược lại.

1...did you learn French?

2...have you bought this house?

3...I went to the zoo was six months.

4...I have visited to Hue.

5... been an English teacher at school for six months.

6...it since you heard from Robert?

7...has Mary listened to classical music?

8...don't need to wear uniforms today.

9...two years since I visited London.

10...over 20 years since he last came back to his village.

Mấy câu này đa số là HTHT vs QKĐ nha bạn!!!