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57.______ that the problem was more than he could deal with,he called the police for help.

A.Having been realized                             B.To realize

C.Realized                                  D.Realizing

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56. Being in no great hurry,______.

A.we went the long route with scenery

B.the long,scenic route was our preference

C.we took the long,scenic route

D.our preference was taking the long,scenic route

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55.I was so badly ill that I couldn’t help ______ the room.

A.clean                  B.cleaning           C.being cleaning      D.to be cleaned

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54. ______your composition carefully,some spelling mistakes can be avoided.

A.Having checked         B.Check                 C.If you check        D.To check

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53.Try to use traveler’s cheques if possible and avoid ______too much money.

A.to bring            B.bringing           C.to have brought          D.having brought

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52. ______ full preparations,we decided to put off the meeting till next week.

A.We did not make                                B.Having not made

C.We had not made                                D.Not having made

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51.-Why was he fined?

-He happened to ______ flowers in the park.

A.be seen step on          B.be seen picking          C.be caught to pull         D.catch damaging

答案:B

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50.The bird flu ______through Asia has jumped from birds to humans at least 20 times so far,______16.

A.sweeps;killed                              B.swept;killing      

C.sweeping;to kill                                 D.sweeping;killing

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49.A cook will be immediately fired if he is found ______in the kitchen.

A.smoke                 B.smoking           C.to smoke          D.smoked

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48.It is said that in Australia there is more land than the government knows ______.

A.it what to do with                           B.what to do it with

C.what to do with it                                D.to do what with it

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