1 . In recent years, a lot of trees have been cut down, which contributes to soil ________ away.

A．washing

B．being washed

C．washed

D．to be washed

2 . It is no use _________ about such things; we can work them out together.

A．to get worried

B．to get worrying

C．getting worried

D．getting worrying

3 . His casual remarks led to ______ by others.

A．me misunderstood	B．my misunderstanding
C．my being misunderstood	D．me be misunderstood

4 . _____ by curiosity, many experts believe, will have a positive effect on adolescents’ creativity.

A．Driven

B．Driving

C．Having driven

D．Being driven

5 . You can hardly imagine the difficultly we had ______ an end to the long-term strike.

A．to bring

B．brought

C．bringing

D．to be brought

6 . _______ the right decision _______ our future is probably the most important thing we will ever do in our life.

A．Making, concerned	B．Make, concerning
C．To make, concerned	D．Making, concerning

7 . With the old man_______ the way, we had no trouble _______the cave.

A．led, to find	B．was leading, found
C．leading, finding	D．leads, find

8 . Whatever trouble Mr. White had ______ with the case, he would stick to his own opinion.

A．deal

B．to deal

C．dealt

D．dealing

9 . He felt rather ______ after ______ the important match.

A．depressing; losing

B．depressed; lost

C．depressed; losing

D．depressing; having lost

10 . Exercise is the key ______ your health．

A．to improve

B．to improving

C．in improving

D．of improving