— Would you allow me here?— Sorry. We don’t permit in the lab.A. smoking; smokingB. to s

问题补充：

— Would you allow me here?

— Sorry. We don’t permit in the lab.

A. smoking; smoking

B. to smoke; to smoke

C. smoking; to smoke

D. to smoke; smoking

答案：

A. smoking; smoking

B. to smoke; to smoke

C. smoking; to smoke

(答案→)D. to smoke; smoking

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