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(单选题) 15: John and Mary finished the work ________.
A: at same time
B: at the same time
C: in same time
D: in the same time
(责任编辑：admin) |
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(单选题) 15: John and Mary finished the work ________.
A: at same time
B: at the same time
C: in same time
D: in the same time
(责任编辑：admin) |