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17．How long are they planning to stay there? two weeks. A．For B．Of C．On D．With 【查看更多】

 

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--How long are they planning to stay there?

--____ two weeks.

A．For                 B．Of                   C．On                 D．With

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How long are they planning to stay there? ____ two weeks.

A．For                  B．Of                   C．On                 D．With

查看答案和解析>>


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