It was never clear _______ the man hadn’t reported the accident sooner.A.thatB.h

It was never clear _______ the man hadn’t reported the accident sooner.A.thatB.h

题型:不详难度:来源:
It was never clear _______ the man hadn’t reported the accident sooner.
A.thatB.howC.whenD.why

答案
D
解析
D【命题动向】考查名词性从句。
解析一:It做形式主语,真实主语由后面的句子来充当。从主语从句的句子成分看,表示原因是最恰当的。句意为:那个人并没有早点儿报告这次事故,其原因还不清楚。
解析二:本题意为“不清楚为什么这个男人没有及早汇报这个事故。”it是本句的形式主语,why引导的从句是真正的主语,表示原因。B选项放在句中句意不通,C选项when表示一个时间点,不能和完成时连用。A选项that放在句中句意不通。
举一反三
Before a problem can be solved,it must be obvious____the problem itself is.
A.whatB.thatC.whichD.why

题型:不详难度:| 查看答案
   is known to us all is that the old worker,    life was hard in the past, still works hard in his seventies.
A.As; whom B.What; whom
C.It; whoseD.What; whose

题型:不详难度:| 查看答案
Did it ever occur to you   you would give up the plan to go abroad?
A.that B.whyC.ifD.whether

题型:不详难度:| 查看答案
_____ is well known to the world is that China has very top technology in space industry.
A.ItB.AsC.WhatD.Which

题型:不详难度:| 查看答案
Everyone in the village is very friendly. It doesn’t matter ___ you have lived there for a short or a long time.
A.whyB.howC.whenD.whether

题型:不详难度:| 查看答案
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