The young woman has so many dresses ,so she doesn't know ______every morinng.

问题描述:

The young woman has so many dresses ,so she doesn't know ______every morinng.
A.what to wear
B.how to wear
C.what to put on
D.how to put on
为什么选A?to的作用是什么?

what to wear= what she should wear.
表示要穿什么,to表将要.
而且这里用wear表状态,因为这里强调的是状态所以不用put on,这个强调动作.