问题
选择题
______ 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
答案：D
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______ 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：D