Polceman has to wear __ uniform when he is working.A the B / C a D an 选哪个?为什么?

问题描述:

Polceman has to wear __ uniform when he is working.A the B / C a D an 选哪个?为什么?
Polceman has to wear __ uniform when he is working.
A the B / C a D an 选哪个?为什么?

A吧,是特定的制服,不是随便的衣服