0  295981  295989  295995  295999  296005  296007  296011  296017  296019  296025  296031  296035  296037  296041  296047  296049  296055  296059  296061  296065  296067  296071  296073  296075  296076  296077  296079  296080  296081  296083  296085  296089  296091  296095  296097  296101  296107  296109  296115  296119  296121  296125  296131  296137  296139  296145  296149  296151  296157  296161  296167  296175  447090 

20.I really don’t know _______I kept the secret papers.

    A.where was it                 B.it was where that        

    C.where it was that             D.where was it that

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19.The problem ________now is very important.

    A.being discussed              B.discussed     

    C.discussing                  D.to be discussed

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18.- According to my grandma, it is a good idea to eat chicken soup when you have a cold.

  -________, scientists agree with her.

    A.Sooner or later               B. Once in a while        

    C.To be exact                 D.Believe it or not

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17.- Catherine, I have cleaned the room for you.

- Thanks, but you ________it.I could manage it myself.

    A.needn’t do                 B.needn’t have done 

    C.mustn’t do                  D.shouldn’t have done

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16._______from the top of the tower, the north foot of the mountain is a sea of flowers.

    A.Seeing                   B.Having seen           

    C.Seen                     D.To see

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15.- I’d better__________ now.The water is boiling in the kitchen.

  - Good-bye.

    A.ring off       B.ring up      C.ring in         D.ring back

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14.Only by shouting at the top of his voice__________

    A.he was able to make himself hear              

    B.he was able to make himself heard

    C.was he able to make himself hear               

    D.was he able to make himself heard

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13.-Must I give the pen to the manager ?

-No, you may give it to________you think is on duty in the office .

    A.whomever                 B.no matter who 

     C.whoever                  D.who

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12.Look! The dictionary, ________cover is red, is a birthday gift given by Tom.

    A.which        B.whose        C.its           D.where

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11._______environmental damage is done, it takes many years for the ecosystem to recover.

    A.Even if        B.If only         C.While         D.Once

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