---Don't skate on the lake! ---Why not? Isn't it thick enough___________?
#48601
A
to skate
B
skating on
C
skating
D
to skate on
推荐题目
-------It’s time to have class. Please stop _________. ----- OK.
#49528
A
to talk
B
talking
C
talk
D
talks
_ _What are you going to do this afternoon?_ _My hair is too long. I want to get my hair__________.
#50119
A
cut
B
to cut
C
long
D
too long
Dr. Ma used to two or three persons in the hospital.
#49403
A
operate on
B
operating on
C
operate for
D
operating for