问题

_____ in the classroom are the people who are attending the parents’ meeting. [ ]
A: Seating
B: Seated
C: To sit
D: Having seated
B: Seated
C: To sit
D: Having seated
正确答案是:
同类题型
More strict measures should betaken____more people are infected with the virus of H1N1 flu.
They are discussinghow to ____a plan to advertise their new product in the office.
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You ______ it up during the meeting——I_______ know it was so sensitive anissue