摘要：--- Something wrong with my headache . --- No wonder. You on the program for such a long time. A. have worked B. worked C. have been working D. were working
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--- Something wrong with my headache .
--- No wonder. You ___________ on the program for such a long time.
|
A．have worked |
B．worked |
|
C．have been working |
D．were working |
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