单项选择题

All female employees are advised to be ______ when entering and leaving the building after-hours due to a recent spate of attacks.

A. caution
B. cautious
C. cautiously
D. cautiousness
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单项选择题
It won’t be ______ to take notes during the seminar, as we will be handing out detailed summaries.
A. basic
B. compelling
C. necessary
D. natural
单项选择题
Answering mobile phone calls while you are at a work meeting is not only discourteous, but it can also destroy the ______ of the meeting.
A. capableness
B. efficacy
C. facts
D. impression
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