Jack must (go) ______ away—we can’t find him anywhere in the factory.have gonemu

游客2024-06-23  12

问题 Jack must (go) ______ away—we can’t find him anywhere in the factory.

选项

答案 have gone

解析 must have done是对过去的事情最为肯定的推测,译为“一定,肯定”。又如:She was absent from class.There must have been something wrong with her.(她旷课了。她一定发生了什么事。)
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