The doctor did what he could_________ the dying man.
#50563
A
save
B
to save
C
saved
D
saving
推荐题目
Now I’m ________ my turn. 
#50482
A
wait for
B
waiting for
C
waiting
D
waiting to
I want to buy something________.
#50661
A
drink
B
drinking
C
to drink
D
drinks
Why not _____ help when you were in trouble?
#49475
A
you ask for
B
ask for
C
asking for
D
asked for
 I finished ______ my homework about two hours ago.
#50240
A
to do
B
doing
C
does
D
to does
It is difficult for the students______  the homework on weekends. 
#49154
A
finish
B
to finish
C
finishing
D
finished