He has ________ great interest in ________ history, especially ________ history of ________ Tang Dynasty．

A．a; 不填; 不填; the

B．a; the; the; 不填

C．a; 不填; the; the

D．不填; 不填; the; 不填

On arriving at the earthquake-stricken area, the volunteers began to involve themselves in some rescue work ________ the heavy rain．

A．even if

B．in case of

C．regardless of

D．because of

It rained heavily in the south,________ serious flooding in several provinces．

A．caused

B．having caused

C．causing

D．to cause

When you rewrite the paragraph, I advise you to leave out ________ is thought unnecessary or misleading．

A．what

B．that

C．those

D．which

As far as I see, ________ is no possibility ________ he will win the tennis match this time．

A．it; that

B．there; that

C．it; whether

D．there; whether

Teachers in senior high schools can't go out very often as their work ________ almost all their time．

A．take in

B．take up

C．take over

D．take on

I took a risk to carry out the project．Foutunately, it ________ in the end．

A．paid up

B．paid out

C．paid off

D．paid back

________ her son has passed the driving test makes her very happy．

A．That

B．What

C．Whether

D．Because

To our relief, at last the opening ceremony of the sports meeting we had been looking forward to ________ on time．

A．had started

B．starting

C．started

D．being started

Have you ever found ________ flash drive has no enough space? Better replace it for ________ bigger one．

A．the; the

B．a; a

C．a; the

D．the; a