IV. Put the verbs in the present perfect tense.
1.He (go) __________ to Ha Long Bay for 2 weeks.
2.Mary ( work) __________ here since last night.
3.Nam ( take ) __________ the bus school since last night.
4.He ( play ) __________ volleyball for 10 years .
5.She ( not go ) __________ to school since last Sunday.
6. Mary ( walk) __________ to work on foot since yesterday .
7. My father ( watch ) __________ TV for 3 days.
8. They ( not be ) __________ at home since yesterday.
9. __________ You (be ) __________ to the zoo ?
10.They ( live ) __________ in Thanh Hoa City since 2001.