Students should be encouraged to use ________ Internet as ________ resource．

A．不填; a          B．the; a            C．the; the            D．不填; the

When you get the paper back, pay special attention to what ________．

A．have marked                                              B．have been marked

C．had marked                                             D．had been marked

It is reported that the floods have left about _________ people homeless．

A．two thousand         B．two-thousands        C．two thousands            D．two thousands of

______ by a greater demand of vegetables, farmers have built more green houses．

A．Driven       B．Being driven            C．To drive         D．Having driven

I can’t persuade him out of playing computer games．He is          to them.

A．reminded           B．a(chǎn)ccustomed              C．a(chǎn)ddicted         D．stuck

Only after spending several nights working on the math problem         to wonder whether the problem was wrongly set.

A．had he begun         B．he began        C．did he begin          D．began he

_______, according to the instructions, the medicine, I think, will work on your headache before long.

A．Take      B．Being taking             C．Taken           D．Taking

He _______ have escaped, but he chose to stay and fight.

A．must        B．could            C．will          D．need

—The guard keeps         watch at the gate.

—So he does．Only those         knows well could be let in.

A．close; who          B．tight; whom         C．tight; that         D．close; he

The teacher stressed again that the students should not ________ any important details while retelling the story．

A．figure out           B．let out           C．leave out        D．pick out