_____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.
#103270
A
To wait
B
Have waited
C
Having waited
D
To have waited
推荐题目
 ---- Hi , Randall,Come on in .----Uh, yeah, I __________ by to see if you ___________ for a roommate to share your house.
#104285
A
stopped; were still looking
B
will stop ;are still looking
C
have stopped ; were still looking
D
stop ; will have looked
---Where is mother? ---She is in the kitchen. She ___ the dinner for the party the whole afternoon.
#103022
A
is preparing
B
was preparing
C
has preparing
D
has been preparing