________ she couldn't understand was ________ fewer and fewer students showed interests in her lessons．

A．What; why

B．That; what

C．What; because

D．Why; that

________ fashion differs from country to country may reflect a cultural difference from one aspect．

A．What

B．That

C．This

D．Which

Without proper lessons, you could ________ a lot of bad habits when playing the piano．

A．give up

B．catch up

C．pick up

D．keep up

The workers are going through with their railway project, ________ the expenses have risen．

A．as long as

B．even though

C．now that

D．as though

It is necessary to use a short-wave radio to ________ the programmes．

A．pick up

B．receive

C．accept

D．pick out

I found ________ impossible for ________ to work out the maths problem．

A．it; be

B．that; he

C．that; him

D．it; him

They think ________ possible to learn a foreign language while studying in the middle school．

A．we are

B．this is

C．it

D．that

After we reached ________ is called Shanghai, we began our jouney．

A．that

B．what

C．which

D．it

Mary is no longer ________ she was five years ago．

A．whom

B．that

C．what

D．when

The dictionary ________10,000 words, ________ many in science．

A．contains; includes

B．is containing; including

C．includes; contains

D．contains; including