麻烦解决一个英语选择题,解释下理由:If you don't see it___himself,you shouldn't believe it.

问题描述:

麻烦解决一个英语选择题,解释下理由:If you don't see it___himself,you shouldn't believe it.
A:by,B:for,C:with,D,at

A,by有由,被,通过的意思.本句意思如果不是有自己看到的,就不要相信