[单选题]Professor Sun,along with his assistants,__________ on the project day and night to meet the deadline.
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2023-10-02 10:11:58
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[单选题]Professor Sun,along with his assistants,__________ on the project day and night to meet the deadline.
A.work
B.working
C.is working
D.are working
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江苏开放大学

大学英语

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