题目内容：

she does not know ____for the party.
she does not know ____for the party.
A.what to wear B.what she wears

优质解答

A选项是很明显的用不定式做宾语补足语的结构.
如果要选B选项的话,那就是用宾语从句的形式来完成这个句子.但是因为前面的主句是一般现在时态,so从句要用一般将来时,所以B选项要改为“what will she wear”才可以.