The meeting room is so small that it can hold 20 people _____.(201706)
A. at last
B. at first
C. at most
D. at once
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She gave us a detailed _____ of the local government’s new health-care proposal.(201706)
A. impression
B. explanation
C. education
D. communication
Linda _____ her training in a joint company by the end of next month.(201706)
A. finishes
B. has finished
C. had finished
D. will have finished
We regard customer complaints as an opportunity to _____ our service.(201712)
A. bring
B. receive
C. improve
D. obtain
We took advantage of its sports facilities _____ staying at the hotel.(201712)
A. although
B. while
C. until
D. unless