Question

【题目】A stupid man tells a woman to shut up, while a wise man tells her that her mouth is quite beautiful _______ it is closed.
A.when
B.since
C.unless
D.though

Answer 1

【答案】A
【解析】句意：一个愚蠢的男人告诉女人闭嘴，而聪明的人告诉她，她的嘴很美……是封闭的。根据句意可知当她的嘴闭上的时候很美，故选A。