_______can help you keep healthy.
#55232
A
Do exercise
B
Doing exercise
C
Do exercises
D
Doing exercises
推荐题目
We can’t ________ the bus before it stops.
#54183
A
get out
B
get in
C
get up
D
get off
Lei Feng always _____ others first. 
#61732
A
thought of
B
thought about
C
thought over
D
thought up