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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

---- 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

—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

.--- I’m sorry I stepped outside for a smoke. I was very tired..
--- There is no ________ for this while you are on duty.

.--- I’m sorry I stepped outside for a smoke. I was very tired..

--- There is no ________ for this while you are on duty.