–What’s the noise?–It’s the drill. Since the beginning of the term, the workers _______ our heating

题目简介

–What’s the noise?–It’s the drill. Since the beginning of the term, the workers _______ our heating

题目详情


–What’s the noise?
–It’s the drill. Since the beginning of the term, the workers _______ our heating system.
A.are repairingB.have been repairingC.will be repairingD.repair
题型:单选题难度:偏易来源:不详

答案

B

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