2 . Meetings _______ only two languages are used may need only one interpreter.

A．who

B．why

C．where

D．when

3 . If we don’t protect those traditions, there may come a time _______ they disappear.

A．whose

B．which

C．where

D．when

4 . Mr Li is an architect _______ designs for the new town have won praise.

A．that

B．whose

C．who

D．whom

5 . Does anybody know the reason _______ he refused to sign the document?

A．why

B．which

C．who

D．whose

6 . A new library _______ in our school. It will open next year.

A．are building

B．build

C．has built

D．is being built

7 . The good relation between humans and nature contributes to building a _________ (harmony) society. (所给词的适当形式填空)

8 . With environmental issues arising frequently, many people work to raise public ______ (aware) of environmental protection. (所给词的适当形式填空)

9 . The government leads a campaign against _______ (legal) trade of wild animals. (所给词的适当形式填空)

10 . When you’re always expecting more and always looking forward to a time_______ you’ll be happy, you’ll never be really happy. (用适当的词填空)