How long do you suppose it is        he arrived there?

A. when         B. before          C. after    D. since

One of the requirements for a fire is that the material ______ to its burning temperature.

A. is heated       B. be heated       C. heated         D. would be heated

The manager just ______ Tom’s report and gave it to his secretary at once, saying it seemed to be all right.

A. fixed on                                                 B. thought over

C. glanced through    D. concentrated on

 He insisted on carrying on the experiment ______ all kinds of difficulties.

A. in spite of      B. instead of   C. because of        D. as a result of

There are so many newly-designed MP3 for you ______ in the shop, I think you can get one you like most.

A. to choose from                   B. to choose

C. to be chosen                     D. to be chosen from

 ______ at the top of the Oriental Tower, people below will look very small.

   A. To stand                 B. Standing                   C. If you stand                D. Stand

 “Never ______ time come again,” our teacher said to us.

A. lose               B. losing                C. will lost                    D. lost

—I’ve told Nancy many times about the meeting, but she still forgot it!

—I understand. Actually, anyone ______ be very forgetful at times.

A. must　　　　 B. should 　　　 C. may　　　　　 　D. can

        out of the difficult situation, the restaurant is now making efforts to improve the quality of service.

A. Getting            B. Got                  C. Having got        D. To get

 —Have you ever visited the Great Wall?

—No, but I wish I ______.

A. have           B. did       C. had          D. do