问答题

The room is in a terrible mess; it ________ (肯定没打扫过).

【参考答案】

can’t have been cleaned
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单项选择题
The advantage of employees having foreign language skills is that they can ________.
A．better control the whole negotiation process
B．easily find new approaches to meet market needs
C．fast-forward their proposals to headquarters
D．easily make friends with businesspeople abroad
单项选择题
N
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