摘要： Professor Smith, along with his assistant, on the project day and night to meet the deadline. A. work B. is working C. working D. are working
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Professor Smith, along with his assistant, ________on the project day and night to meet the deadline.
A. work B. working C. is working D. are working
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Professor Smith,along with his assistant,________ on the project day and night to meet the dead line．
- A.work
- B.working
- C.is working
- D.are working
Professor Smith, along with his assistant, ________on the project day and night to meet the deadline.
| A．work | B．working | C．is working | D．are working |