Ex22: Put the verbs into the correct form: present simple or past simple, active or passive:
1. The rice-cooking festival (hold) ................. every two years.
2. Water (cover) .................... most of the Earth’s surface.
3. The letter (post) ..................... a week ago and it (arrive) ................. yesterday.
4. The boat (sink) .............. quickly but fortunately every body (rescue)..............
5. John’s parents (die) ................. when he was very young.He and his sister (bring) ...................... up by their grandparents.
6. The gate (lock) ................. at 6.30 p.m every day.
7. Sue (bear) ................ in London but she (grow) .................. up in the north of England.
8. We (not play) ........................ soccer yesterday.The match (cancel) ..........................
1. The rice-cooking festival (hold) is held every two years.
2. Water (cover) is covered most of the Earth’s surface.
3. The letter (post) was posted a week ago and it (arrive) arrived yesterday.
4. The boat (sink) sinked quickly but fortunately every body (rescue)rescued
5. John’s parents (die) died when he was very young.He and his sister (bring) brought up by their grandparents.
6. The gate (lock) is locked at 6.30 p.m every day.
7. Sue (bear) was born in London but she (grow) grew up in the north of England.
8. We (not play) didn't play soccer yesterday.The match (cancel) was canceled
Chúc bạn học tốt 
1. is held
2.is covered
3.was posted-arrived
4.sinked-was rescued
5.died-was brought
6.is locked
7.was born-grew
8.did not play-was cancelled