求主语从句的解析和答案2,5._____ was to return to school.A.That really interested him B.What really interested himC.Which really interested him D.That interest him really6.______ makes mistakes must correct them.A.What B.That C.Whoever D.Whatever
问题描述：
求主语从句的解析和答案2,
5._____ was to return to school.
A.That really interested him B.What really interested him
C.Which really interested him D.That interest him really
6.______ makes mistakes must correct them.
A.What B.That C.Whoever D.Whatever
答
5.选B.what引导的主语从句,what在主语从句中做主语.不用that,因为that没有实际意义,不选which,which表示选择,这里没有选择的意思.
6.选C、 whoever 引导的主语从句,whoever在主语从句中做主语.因为是人犯错误,所以用whoever