(93)1.Many people are still in ___ habit of writing silly things
         in ___ public places.
         A.the;the
         B.;
         C.the;
         D.;the
(94)2.She is ___ newcomer to ___ chemistry but she has already
         made some important discoveries.
         A.the;the
         B.the;
         C.a;
         D.a;the
(96)3.Many people agree that ___ knowledge of English is a must in ___
        international trade today.
        A.a;/
        B.the;an
        C.the;the
        D./;the



























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