the airport he was arrested（逮捕） by the police.A. As soon as arrivingB. Upon he arrivedC.

问题补充：

the airport, he was arrested（逮捕） by the police.

A. As soon as arriving

B. Upon he arrived

C. On arriving

D. Upon arriving at

答案：

A. As soon as arriving

B. Upon he arrived

C. On arriving

(答案→)D. Upon arriving at

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