0  136480  136488  136494  136498  136504  136506  136510  136516  136518  136524  136530  136534  136536  136540  136546  136548  136554  136558  136560  136564  136566  136570  136572  136574  136575  136576  136578  136579  136580  136582  136584  136588  136590  136594  136596  136600  136606  136608  136614  136618  136620  136624  136630  136636  136638  136644  136648  136650  136656  136660  136666  136674  447090 

40.Bill won’t make any progress ________he studies harder than before.

   A.if          B.when        C.because      D.unless

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39.We should leave early tomorrow morning,_________we won’t get there on time.

   A.so          B.or          C.but          D.and

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38.The snow storm which hit this area last night was_________ in recent years.

   A.heavy         B.heavier       C.heaviest      D.the heaviest

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37.Plastic bags have caused serious environmental pollution,________?

   A.haven’t they  B.have they     C.don’t they     D.do they

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36.I knocked on the door several times but ________answered,so I left.

   A.somebody     B.nobody       C.anybody      D.everybody

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35.Steven and William are keen ______playing computer games. 

A.to          B.with        C.on          D.at

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34._______engineers and workers are helping to rebuild the damaged city.

   A.Many         B.Much       C.A little        D.A lot

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33.David talked with a friend of _______on the Internet for a long time yesterday.

   A.he          B.his          C.him          D.himself

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32.Betty,let’s make a cake _______some flour,sugar,butter and milk.

   A.at          B.of          C.in           D.with

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V.Choose the best answer(选择最恰当的答案):(共20分)

31.Linda always takes_______ active part in sports after school.

   A./          B.a           C.an          D.the

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