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. If a computer crashes, you will lose the file you unless you save it regularly

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. If a computer crashes, you will lose the file you unless you save it regularly

.

 If a computer crashes, you will lose the file you _________unless you save it regularly.

  A. are working     B. work            C. will work       D. worked

试题答案

A

标签：losewillfilethecomputer

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