在空白处填入适当的內容(1个单词) 或括号内单词的正确形式

1. It is thought that Jack is superior        the others in his class;he is really excellent.

10. He went out        (shut) the door behind him.

9.        (give) good training,that girl will make an excellent dancer.

8.        (wait) by others for over half an hour,he didn't turn up at the meeting.

7. The famous writer came to the lecture hall,      (surround) by his crazy fans.

6. This kind of trees can grow well? even        (plant) in such poor soil.

5.        (frighten) by the noise in the night,the girl didn't dare tc sleep in her room.

4. She stood        (hesitate) over whether to join the fight or not.

3. When first        (introduce) to the market,these products enjoyed great success.

2.        ( suffer) such heavy pollution already,the river needs to be cleaned up.