______ is a good form of exercise for both the old and the young.
#88215
A
Walk
B
To walk
C
Walking
D
The walk
推荐题目
O'Neal works hard．He is often seen _______ heavily before his teammates have even arrived at practice．
#97449
A
sweated
B
to be sweated
C
sweating
D
being sweated
The young man lay on the sofa with his arms _____ and soon fell asleep.
#96285
A
folded
B
folding
C
being folded
D
to fold