---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
There are so many delicious food in the menu. I can’t decide ________.
#50559
A
how to eat
B
where to eat
C
what to eat
D
when to eat
When shopping, keep your eyes ______for those energy-saving machines.
#49678
A
opened
B
open
C
to open
D
to be open
