When _____ who is their best friends, the boys usually hesitate before responding.
#96749
A
asking
B
asked
C
ask
D
to ask
推荐题目
Have you checked all the CDs _____ to the mountainous area next week?
#92875
A
sent
B
to be sent
C
sending
D
being sent
The young lady prefers dressing up for a party to ____ by others.
#98116
A
be noticed
B
being noticed
C
having been noticed
D
have been noticed