－Are you still thinking about yesterday's game?

－Oh, that's ________．

A．what makes me feel excited

B．whatever I feel excited about

C．how I feel about it

D．when I feel excited

There is a new problem involved in the popularity of private cars ________ road conditions need ________．

A．that; to be improved

B．which; to be improved

C．where; improving

D．when; improving

The other day, my brother drove his car down the street at ________ I thought was a dangerous speed．

A．as

B．which

C．what

D．that

He advised that the doctor ________．

A．should send for

B．should be send for

C．be sent for

D．must be sent for

I wonder ________ Jenny hasn't written us recently．We should have heard from her by now．

A．because

B．if

C．why

D．whether

I wonder whether he knows ________ to write a book．

A．how great pains it will cost

B．what great pains will it take

C．what great pains it will cost

D．what great pains it will take

Whether we will go there depends on ________ it will be fine or not．

A．how

B．whether

C．that

D．/

I still doubt ________ he can overcome all the difficulties．

A．whether

B．that

C．what

D．but

I asked him ________ what he was doing．

A．was he sure to know

B．did he know for sure

C．whether he sure knew

D．if he was sure he knew

The question is ________ can be put into practice．

A．how you have learned

B．how what you have learned

C．that why you've learned

D．how that you have learned