Dr. Ma used to            two or three persons in the hospital.
#49403
A
operate on
B
operating on
C
operate for
D
operating for
推荐题目
At last the boy was made_____ and began to laugh.
#50101
A
stop crying
B
to stop to cry
C
to stop crying
D
stop to cry.
My  teacher asked her       late for school again.
#49557
A
not to be
B
not be
C
don’t be
D
to be not
 —Do you prefer swimming_______?—No, I would rather cycle than _______ . 
#49051
A
than cycling, to swim
B
to cycling, swim
C
to cycle, to swim
D
to cycle, swim
We had no time_________, but we had a great time _________the model plane together.
#50776
A
to chat;making
B
to chat;to make
C
chatting:making
D
chatting;to make