1 . ______ to sunlight for too much time will do harm to one’s skin.

A．Exposed	B．Having exposed
C．Being exposed	D．After being exposed

2 . 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

3 . ____in a poor family made Tom very diligent when he was still young.

A．Brought up	B．Bring up
C．Being brought up	D．Having brought up

4 . —Did you enjoy yourself last night?
—Yes, it’s very nice of you. I appreciated      to the party.

A．to be invited	B．to have invited
C．having been invited	D．having invited

5 . Everything _____ doing is worthy of _____ well.

A．worthy; being done

B．worth; being done

C．worthy; doing

D．worth; doing

6 . Afraid __________? This type of anxiety can deeply disturb people’s enjoyment of social relationships.

A．of laughing at	B．to be laughed at
C．of being laughed at	D．to laugh at

7 . The poor children are looking forward to _____ a Christmas present that day.

A．give

B．be given

C．giving

D．being given

8 . You’d better put a screen-safety on your computer _____ your eyes from _____.

A．keep; damaged

B．stop; being damaged

C．to prevent; damaged

D．to protect; being damaged

9 . The young lady prefers dressing up as a stranger for a party to________ by others.

A．be noticed	B．being noticed
C．having been noticed	D．have been noticed

10 . The government has to close those small factories to prevent the water of the river ______.

A．polluting

B．from polluting

C．being polluted

D．polluted