III.

1. How long have you learned English?

2. We have lived here for 15 years.

3. She hasn't visited me for 5 years.

4. I haven't written to my uncle since July.

5. We have become close friend for a long time.

6. Minh has collected stamps since 2000.

IV.

1. bought - hasn't worn

2. has taught - graduated

3. have you heard - was - have read

4. got - was - went

5. earned - has already spent

$#Kunchan$

$#No_copy$

Bài 3 ( Trong hình )

Bài 4 : 

1. bought / hasn't worn

2. has taught / graduated

3. have you heard / was / have read

4. got / was / went

5. earned / has already spent