17.____all the inventions have in common is ____they have succeeded.
A.What; what B.That; that C.what; that D.That ; what
答案是C没有疑问,什么从句?
人气：468 ℃ 时间：2020-03-29 09:19:32
解答
What all the inventions have in common中的What引导的是主语从句,而后面的they have succeeded做的是表语只能用that引导~~
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