Three years‘ working experience is one of the basic _______ of doing the job.

单选题

Three years‘ working experience is one of the basic _______ of doing the job.

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单选题

Where in the past three years?

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单选题

______she has been working in China for only two years, she speaks fluent Chinese(2.0)

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单选题

He( )with Smith at least four times in the past three years.

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单选题

I’d rather you ___ the international conference since you have been working on this subject for several years.

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