A.span
B.era
C.phase
D.sphere
第1题
They had to decide whether they should ()some classes.
A、call off
B、call on
C、call up
D、call in
第2题
The organizing committee will hold a ()meeting on Wednesday to discuss the schedule.
A、preceding
B、previous
C、preliminary
D、prior
第4题
Chinese customs regulations () taking precious works of art out of China.
A、prohibit
B、allow
C、avoid
D、repel
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