1 . 语法填空：用括号内单词的适当形式填空。
1. The understanding between two friends ________(mean) both of them have similar ideas and trust each other.
2. All of the research work __________(design) by the chief engineer last year.
3. By focus on _________(save) oil, water, paper, food and clothing, we are playing a part in cutting down on waste.
4. It is no use _________(argue) with him; he won’t change his mind.
5. I still remember _______(take) to see films in the open air when I was small.
6. People ______(work) in green environment have been found to have fewer stomachaches.
7. The principal said that the teacher rather than the students _______(be) to blame.
8. A student will be immediately punished if he is found __________(smoke) at school.
9. He sent me an e-mail, __________(expect) to get further information.
10. You may find the news ______(astonish).

2 . You may not understand what they have done, because they ____ a younger generation.

A．belong to

B．are belonged to

C．are belonging to

D．will be belonged to