问题

He is _________ a meeting .[ ]
A: have
B: has
C: at
D:on
B: has
C: at
D:on
正确答案是:
同类题型
It’s the office! So you know eating is not allowed here.— Oh, sorry.
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How time flies ! Several years _____ since we last met at Jack’s Party.
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If you want people to treat you nicely, you have to treat nicely, too.