Supply the correct verb forms

Supply the correct verb forms
1. At present, they (rehearse) a play
2. Nam is in the garden. He ( plant) some trees
3. Mr Nam ( visit) this village twice a week when he ( be) young
4. Mai ( not/ spend) our holiday in the city next summer
5. What your father (do) in his free time? 
6. Nam ( never be) late for school
7. The boys ( work) in the amusement center next Sunday
8. Tomorrow, their teacher (not have) a picnic with them