There is no doubt ________ my friend Smith will come to visit China soon．

A．that

B．whether

C．if

D．when

You have not answered my question ________ I can join in the party tonight．

A．whether

B．if

C．which

D．that

They didn't tell me the fact ________ they had already paid the bill．

A．that

B．how

C．what

D．if

I have no idea ________ we ________ hand in our papers after class．

A．if; need

B．whether; need to

C．if; ought to

D．that; dare

－Are you familiar with the music?

－Yes, there was a time ________ this kind of music was quite popular．

A．that

B．when

C．with which

D．about which

The city plan to build a park ________ there used to be a lake．

A．where

B．that

C．near which

D．which

Have you thought of a situation ________ this idiom can be used?

A．when

B．where

C．which

D．/

It remains a question ________ we can get so much money in such a short time．

A．how

B．that

C．when

D．what

You have no idea ________ those days．

A．that we were how busy

B．how busy were we

C．that how we were busy

D．how busy we were

There is no doubt ________ Mr．Zhang will sign the contract(合同)with us．

A．when

B．whether

C．if

D．that