1 . I don’t doubt________ he’ll come.

A．that

B．what

C．if

D．whether

2 . You’d better check________ the driver has a driving permit and make sure________ the taxi has a business permit.

A．that; that

B．if; if

C．whether; if

D．that; whether

3 . —What do you think of China?
—__________ different life is today from__________ it used to be.

A．How, what

B．What, what

C．How, that

D．What, that

4 . Yesterday he sold out all his stamps at ______ he thought was a reasonable price.

A．that

B．which

C．what

D．as

5 . With the development of modern electrical engineering, we can transmit power to ____ needed.

A．wherever

B．whatever

C．however

D．whoever

6 . You should explore your talents so as to find out ____ your real interests lie.

A．what

B．which

C．where

D．that

7 . — Henry, can you go to the concert tonight?
— I'm afraid I can't. I will give the ticket to ________ wants to enjoy it.

A．someone

B．whomever

C．everyone

D．whoever

8 . As I looked at the memorial, I thought about __________ terrible life was for the Jews then and _________ they were to fight the Nazis.

A．how; how

B．what a; how

C．what; how

D．how; what

9 . I was surprised by her words， which made me recognize___silly mistakes I had made.

A．what

B．that

C．how

D．which

10 . The student completed this experiment to make come true ______ Professor Joseph had said.

A．that

B．what

C．when

D．where