It worries the couple a lot their only son is behaving worse and worse these days.A. howB

发布时间:2020-08-17 01:45:57

It worries the couple a lot      their only son is behaving worse and worse these days.
A. how
B. why
C. that
D. what

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A. how
B. why
(答案→)C. that
D. what
解析:考查主语从句,这里it是形式主语,that是引导主语从句,主语从句中不缺成分,用that引导,句意:他们唯一的儿子最近表现越来越差让这对夫妇很担心。选C。
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