_____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. [ ]A

题目简介

_____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. [ ]A

题目详情

_____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
[     ]
A. To wait
B. Have waited
C. Having waited
D. To have waited
题型:单选题难度:中档来源:北京高考真题

答案

C

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