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单选!并说出什么从句1.shecouldn’tunderstandwasfewerandfewerstudendsshowedinterestinherlessons.A.what,whyB.that,whatC.what,becauseD.why,that

题目详情
单选!并说出什么从句
1.____ she couldn’t understand was ____fewer and fewer studends showed interest in her lessons.
A.what,why B.that,what C.what,because D.why,that
▼优质解答
答案和解析
A
was前为主语从句
that后为表语从句