Unless to speak, you should remain silent at the conference.A．invitedB．in_刷题宝

题干

Unless to speak, you should remain silent at the conference.

A．invited	B．inviting
C．being invited	D．having invited

上一题下一题 0.64难度单项选择更新时间:2012-05-28 07:02:24

答案(点此获取答案解析）

小学学科试题库

初中学科试题库

高中学科试题库