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28、—Was the manager in the office when you got there?

— Yes, but she ____ soon afterwards.

A．left   B．had left     C．will leave  D．would leave

27、—What are you busy with?

—The conference ___ in our city, as you know.

A．held B．will be held       C．be holding       D．to be held

26、That was not a good place to go skating. You ____your leg.

A．can break                                                  B．may break

C．might have broken                                    D．could have been broken

25、As is known to all, ____ attention you pay to your spelling, ____ mistakes you will make.

A．the less; the fewer                                      B．the less; the more

C．the more; the less                                       D．the more; the more

24、Of all the books on the desk, ____is of any use for our study.

A．nothing     B．no one      C．neither      D．none

23、—Has Sam finished his painting?

—No idea．He _______ it this morning.

A．did    B．has done   C．was doing D．had done

22、Although medical science ______ control over several dangerous diseases, what worries us is that some of them are returning.

A．a(chǎn)chieved   B．has achieved     C．will achieve      D．had achieved

21、In this country it is required that anyone who _______recently come here ______ to pass this kind of test.

A．has, has    B．has, had    C．have, have       D．has, have

20、There have been several new events _____ to the program for the 2008 Beijing Olympic Games.

A．a(chǎn)dded       B．to add       C．a(chǎn)dd   D．a(chǎn)dding

19、The camera isn’t___. It still ___where I ___ it a month ago.

A．missed; lies; lay                                         B．gone; lays; laid   

C．missing; lies; laid                                        D．lost; lays; lay