_____ in the queue for an hour,Tom sudde
题型:选择题
问题:
_____ in the queue for 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
_____ in the queue for 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