Giúp em vs ạ e. My friends have played football since they were young. => ……………………………………………………… c. I haven’t enjoyed myself so much for years. => ………………………………………………………………………… 3. a. She hasn't gone out with him for two years. => …………………………………………………………………………… b. The last time I went to HCM city was two years ago. => ………………………………………………………………… c. He last had his eyes tested ten years ago. => …………………………………………………………………………… d. I last read that book on November 20th. => …………………………………………………………………………… e. I haven’t seen her since 2010. => …………………………………………………………………………… a. I haven’t eaten this kind of food before. => …………………………………………………………………………… b. My father hasn’t driven a car before. => …………………………………………………………………………… c. This is the first time I have seen him. => …………………………………………………………………………… d. I have never eaten with knives and folks before. => ……………………………………………………………………… e. This is the first time I have visited Ha Noi. => ……………………………………………………………………………

`Đáp` `án:`

e. My friends started playing football when they were young.

c. The last time I enjoyed myself so much was years ago.

a. The last time she went out with him was two years ago.

b. I haven't gone to HCM City for two years.

c. He hasn't had his eyes tested for ten years.

d. I haven't read that book since November 20th.

e. The last time I saw her was in 2010.

a. This is the first time I have eaten this kind of food.

b. This is the first time my father drove a car.

c. I have never seen him before.

d. This is the first time I have eaten with knives and folks.

e. I have never visited Ha Noi before.

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Các công thức đổi HTHT - QKĐ

Loại 1: 

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

→ S + last + V2/ed 

→ The last time + S+ V2/ed + was + time + ago

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

Loại 2: 

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

→ When + did + S + V1?

→ How long is it + since + S+ V2/ed ?

→ How long ago + did + S + start / begin + to V / Ving? 

Loại 3:

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

→ S + started / began + to V / Ving 

→ It is / has been + time + since + S+ V2/ed 

Loại 4: 

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

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

Loại 5:

When + did + S + last + V1?

→ When + was the last time + S + V2/ed?