题目内容

So far nothing _____ Tom. I want to know the reason _______ he hasn’t written to me.
A.heard from; why  B.has been heard from; why
C.was heard from; thatD.has heard from; that
B
含有so far的句子应该时现在完成时态;reason作先行词,定与从句应该用that引导。
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