__________ good exercise.
#96156
A
Climbing hills is
B
Climbing the hill is
C
The climbing hills are
D
The climbing of hills are
推荐题目
Time should be made a good use ____ our lessons well.
#98588
A
of to learn
B
of learning
C
to learn
D
to learning
We suggested ___ trees at the weekend.
#97802
A
planted
B
plant
C
to plant
D
planting
 We have made _____ a rule ______ in the office.
#95881
A
this, not to smoke
B
it, smoking
C
it, to not smoke
D
it, not to smoke