Ex6. Give the form of the verbs.
1. Mary (be).............. at home yesterday.
2. The children (be)............... in grade 8 last school year.
3. Paul (study) ............French last night.
4.They (cut) ..................down many trees in 1999.
5. We (see) .....................her at a party a long time ago.
6. Mr Phong (leave) ...................for New York since last week.
7. I (live) .......................in Dong Anh for many years.
8. The Pikes (have) ..................dinner at 7 o/clock last night.
9. Yesterday I (call) .............Tom on the phone. He (not be).........................at home, so I (speak).......................to his mother.