He looked ___the mirror and found himself a little thinner.

问题描述:

He looked ___the mirror and found himself a little thinner.

汉语说“照镜子” 实际意思就是“朝镜子里面看”

看镜子里的自己发现自己有点瘦了。因为镜子里面,用in

照镜子就是look in the mirror,这个不需要解释太多,记住就行了.
请及时采纳,多谢!