摘要： Professor Smith, together with his assistants, on the project day and night to meet the deadline. A. word B. working C. is working D. are wording
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Professor Smith, together 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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B. working
C. is working
D. are working
| Professor Smith，together 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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