问题
选择题
— I'm sorry I stepped outside for a smoke. I was very tired.
— There is no _____ for this while you are on duty.[ ]
A. reason
B. excuse
C. cause
D. explanation
答案
答案：B
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— I'm sorry I stepped outside for a smoke. I was very tired.
— There is no _____ for this while you are on duty.[ ]
A. reason
B. excuse
C. cause
D. explanation
答案：B
