赞题库-背景图
单项选择题

It will be a great advantage to be able to speak a foreign language, especially if you are ______ business.

A．to
B．with
C．on
D．in
<上一题 目录 下一题>
热门试题

单项选择题______ they change the coach, they will lose the match.

A．Until
B．Before
C．Unless
D．Although