1 . ________ (commit) to scientific research, the scientist remained single all his life. (所给词的适当形式填空)

2 . The research,         by Tsinghua University, shows that different parents have different approaches to these problems.

A．conducted

B．to conduct

C．conducting

D．to be conducted

3 . ___________(intend) to enrich students’ school life, our program features the fun of English. (所给词的适当形式填空)

4 . I saw her sitting at a window table, __________(bathe) in sunlight. (所给词的适当形式填空)

5 . A rescue worker risked his life saving two tourists _________(trap) in the mountains for two days. (所给词的适当形式填空)

6 . Although _______ (strike) by the snowballs in the face, I felt extremely excited in the snowball playing. (所给词的适当形式填空)

7 . The official said the plane had taken off an hour later than s________, and came down because of bad weather conditions. （根据首字母单词拼写）

8 . Everything ___ into consideration, they believed themselves more and returned to their positions.

A．to take

B．taken

C．to be taken

D．taking

9 . ________ (compare) with the ocean, a drop of water is extremely insignificant.

10 . Two people got ______(困住)in the lift this morning when the electricity was cut off. (根据汉语提示填空)