题目内容：

She does not know .
A.what she can do it
B.what to do it
C.how to do
D..how to do it
She does not know ..............
A.what she can do it
B.what to do it
C.how to do
D..how to do it
说理由

优质解答

选择D.首先要理解,连接词在不定式结构中是要作成分的.A,what要作can do 的宾语,但是它已经有了宾语 it,成分重复,错了.B.解释和A是一样的,成分重复.C.how 是个表示方式的词,只有作状语,但是,不定式to do 没有宾语,错...