— Who are those people gathering in front of the building? — A group __________ itself the youth volunteers.
#92980
A
calling
B
calls
C
called
D
to be called
推荐题目
Upon ________ his studies, he started travelling in China. 
#90548
A
finish
B
finishing
C
he finished
D
finished
Nobody but doctors or nurses and those ________ by Dr Li ________ to enter the patient’s room.
#88751
A
being invited;allowed
B
are invited;are allowed
C
invited;is allowed
D
invited;are allowed