1 . Do not let any failures discourage you, for you can never tell ________ close you may be to victory.

A．how	B．that
C．which	D．where

2 . Experts believe        people can waste less food by shopping only when it is necessary.

A．why

B．where

C．that

D．what

3 . You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.

A．that; what

B．what; /

C．which; that

D．/; that

4 . The villagers have already known ___________ we’ll do is to rebuild the bridge.

A．this	B．that
C．what	D．which

5 . We’ve offered her the job, but I don’t know______ she’ll accept it.

A．where

B．what

C．whether

D．which

6 . We promise      attends the party a chance to have a photo taken with the movie star.

A．who

B．whom

C．whoever

D．whomever

7 . As many as five courses are provided，and you are free to choose________suits you best.

A．whatever	B．whichever
C．whenever	D．wherever

8 . Scientists study ____ human brains work to make computers.

A．when

B．how

C．that

D．whether

9 . Could I speak to ____ is in charge of International Sales, please?

A．anyone

B．someone

C．whoever

D．no matter who

10 . To improne the pmlity of our products we uaked for nuggratior a                 had used the producu.

A．whacver	B．who
C．whichever	D．which