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        1. Today’s work ____ today. Never leave it till tomorrow.
          A.must doB.must be done.C.may be doneD.may do
          B
          本題的含義是今天的事情必須要今天完成,不要拖到明天,主語是動作的承受者,故用被動語態(tài),結(jié)構(gòu)為be+過去分詞,根據(jù)句意本題含有猜測的單詞must,故選B。
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