1. have had

2. has worked

3. have never seen

4. has grown

5. has known

6. has made

7. haven't felt

8. has taught

9. have asked

10. haven't heard

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DHNB thì hiện tại hoàn thành:

• Since thời gian: từ khi (mốc thời gian)
• For: khoảng (khoảng thời gian)
• Already (rồi)
• Now (bây h)
• Recently, lately (gần đây)
• This morning (sáng nay)

1. have had

2. has worked

3. have never seen

4. has grown

5. has known

6. has made

7. haven't felt

8. has taught

9. have asked

10. haven't heard

Cấu trúc thì HTHT:

Khẳng định: S + have/has + P.P

Phủ định: S + have/has + not + P.P

Nghi vấn: Have/Has + S + P.P?

Dấu hiệu nhận biết: since, for, already, never, ever, just, recently, lately, before, yet, so far = until now = up to now = up to the present, in/for/during/over + the past/last + thời gian, so sánh hơn nhất, số lần, all day, all night, all my life

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