1.When I (get).......home , they (watch) .....TV , they (not do)....their homework.
2.What Ha(do)........at 6.30 this morning?
- She ( swim) .....
3.She (listen) ........to music when the phone (ring).....
4 .We (study) ...... unit 18 at this time last week.
5. I (not visit)....... Ha Long Bay last year, because I (be).....busy.
6.The train (leave)......the station yesterday afternoon.
7. My parents (have).......dinner by the time I (get) .......home yesterday.
8 .Bill Gates (not earn) ....... $300 in 2005,he (earn).......$175.