1 . The student made great progress _________the help of his teachers and classmates.

A．rather than

B．thanks to

C．with the hope of

D．in addition

2 . To keep safe ________ an earthquake, you should remain at a spot where nothing may fall on you.

A．in spite of	B．in case of
C．in search of	D．in place of

3 . A lack _______ exercise may lead to poor health.(用适当的词填空)

4 . The heights of the plants vary __________ 8 cm to 20 cm.（用适当的词填空）

5 . The number of cyclists running through red traffic lights is ________ the decrease. (用适当的词填空)

6 . He is looking forward ________ exchanging notes with his friend. (用适当的词填空)

7 . In the UK and US, senior high students take part ________ various after-school activities. (用适当的词填空)

8 . I was frightened ________ the sight of the test paper. (用适当的词填空)

9 . Speaking ________ bicycle, some people think it has outdated in many big cities. (用适当的词填空)

10 . When we look out ________ the window, we can see a high building. (用适当的词填空)