The man dressed jeans is an expert unlocking doors and he can open a door difficulty.A.

The man dressed jeans is an expert unlocking doors and he can open a door difficulty.
A. in, on, with
B. on, at, with
C. in, on, without
D. in, at, without

A. in, on, withB. on, at, withC. in, on, without(答案→)D. in, at, without解析：考查介词：第一空是be dressed in穿着，第二空be an expert at是…的专家，第三空without difficulty，毫不费力的，句意是：穿着牛仔裤的人是解锁专家他能毫不费力的开门。选D。

对的，就是这个意思