1 . ________ life exists on any other planet in the solar system still remains a question.

A．Why

B．Whether

C．How

D．If

2 . ________leaves the classroom last should turn off the lights.

A．Which

B．Who

C．Whichever

D．Whoever

3 . She told me       was most important to her, believe it or not, was her pet dog.

A．what

B．it

C．that

D．as

4 . ________ is it ________ has made Tom ________ he is today?

A．What, that, that

B．That, that, what

C．What, what, that

D．What, that, what

5 . It is said________           was all _     __ he said.

A．that; that; which	B．what; what; what
C．that; which; what	D．that; that; that

6 . With your help, there is no doubt ______ our plan is meant for will work out successfully.

A．what that

B．whether that

C．that what

D．that whether

7 . _____ girls can be_____they would like to be, whether it is a pilot or an astronaut, is being accepted all around the world.

A．What; whomever	B．That; whatever
C．If; whoever	D．不填; whatever

8 . ______ impressed the tourists most was the peaceful atmosphere and the friendly people there.

A．When	B．That
C．What	D．Where

9 . ______ you can make your dream come true depends on hard work more than luck.

A．Whether	B．That
C．What	D．How

10 . Every year, ________ makes the most beautiful kite will win a prize in the Kite Festival.

A．whatever	B．whoever
C．whomever	D．whichever