A.can | B.should | C.will | D.must |
A.Would | B.Should | C.Shall | D.If |
A.can receive | B.can have received | C.must have received | D.must receive |
A.won’t | B.don’t | C.oughtn’t | D.shan’t |
A.dare not | B.dared | C.dare to | D.dares not to |
A.the members studied the problem more carefully |
B.the problems were more carefully studied |
C.the problems could be studied with more care |
D.the members study the problem more carefully |
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