问题标题:
急!急!急!高中英语选择题解答wehavebeeninformedthathehaddone()visitswereessentialbyeleveno'clocklastnight.选项有:A:allB:whatC:thatD:allthat答案为B,为什么?
问题描述:

急!急!急!高中英语选择题解答

wehavebeeninformedthathehaddone()visitswereessentialbyeleveno'clocklastnight.

选项有:A:all

B:what

C:that

D:allthat

答案为B,为什么?

冯志华回答:
  wehavebeeninformedthathehaddone()visitswereessentialbyeleveno'clocklastnight.   that在这里引导宾语成句(hehaddone()visitswereessentialbyeleveno'clocklastnight.)   he做主语haddone做谓语,句子中有wereessential(系表结构)所以   haddone后面接宾语从句,宾语从句就需要引导词   所以答案就是what
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