The identical twins look so much like each other that even their close friends may ___one for the other.

问题描述:

The identical twins look so much like each other that even their close friends may ___one for the other.
A.mix B.combine C.confuse D.mistake 我选了C,我不能理解= =.

confuse是表示困惑的意思.而mistake 表示认错,误判.
这里用mistake one for another表示把一个误认为另一个.