1. Sandy got a lot of presents at her ________ (nine) birthday party.
2. Something has been done to reduce the price of buildings. People are very happy when  ________ ( hear) it.
3. It took me an hour ________ (do) my homework last night.
4. Playing too many computer games is          (harm) to you. 
5. My shoes are broken. They need                (repare).
6. Mr. Black said that he ____________（come）back in five minutes.
7.Look, a young man                     (lie) on the ground.           
8. She is very hungry. She _____（not eat）anything for three days.