Mom, have a rest please. You______in the kitchen ever since you came home.

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问题 Mom, have a rest please. You______in the kitchen ever since you came home.

选项 A、had worked
B、were working
C、have been working
D、would work

答案C

解析本题考查动词时态。句意：妈妈，请休息一下，自从你回家以后就一直在厨房里忙。本题中since在句中引导时间状语从句，从句用过去时，主句用现在完成时的进行时表示动作一直持续到现在。所以答案为C。

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中学英语

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