动词填空
1. I hope you ________(telephone) me before you ________(return) to your hometown.
2. He ________(be) busy ________(write) a report on animals in danger between 7 and 9 o'clock
yesterday evening.
3. The zookeeper told us ________(not make) any noise in the zoo.
4. Are you interested in ________(play) volleyball with us after school?
5. Sadly, people are keeping changing the wetlands ________(build) more farms and buildings.
6. My younger sister is beginning ________(learn) French.
7. The teacher told us that the earth ________(move) around the sun.
8. Jim with his friends often ________(listen) to the radio programme on English on Saturday evenings.
残根，牙周组织支持条件好，已做过根管治疗，最好的修复方法是（）