1. I have been learning English for 3 years

2. She began to write her pen pal 5 years ago

3. It is 3 years since Lan and Maryam corresponded

4. It's the first time I have worn this shirt

5. The last time I heard him was August

6. He hasn't gone abroad before

*Vote + ctlhn nha*

IV.

1. I have learned English for three years (Started to V.inf  ⇒ Have V(ed/P2)

2. She began to write her pen pal five years ago (Has V(ed/P2) ⇒ began to V.inf)

3. It is three years since Lan and Maryam corresponded (It is + time + since + QKĐ)

4. It's the first time I have won this shirt ( It's the first time + S + has/have + V(ed/P2).

5. The last time I heard him was August ( The last time + QKĐ + was + time)

6. He hasn't gone aboard before ( He + has + not + V(ed/P2) + before