The successful launch of Shenzhou VII must have immediately excited the Chinese, _____ it? [ ]

Are you willing to live in an age _____ 4G technology will bring about an information revolution

must have been a long trip — Yeah, it _____ us a whole week to get there

Who will go to America this summer, you or your brother—_________. We will go to Hainan together.

Why can’t I smoke here—At no time _________ in the meeting room.