25.In the conference room on the fifth floor, where a meeting, some students were busily s

发布时间:2020-08-16 07:33:20


25.In the conference room on the fifth floor, where a meeting    , some students were busily setting the chairs.
A. was to be held
B. has been held
C. will be held
D. is being held

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(答案→)A. was to be held
B. has been held
C. will be held
D. is being held
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