_____in the ticket hall for almost an hour, I suddenly realized I had left my ID card home.[ ]A. To
A. To wait B. To have waited C. Waiting D. Having waited
题目简介
_____in the ticket hall for almost an hour, I suddenly realized I had left my ID card home.[ ]A. To
题目详情
A. To wait
B. To have waited
C. Waiting
D. Having waited
答案