The experiment shows that proper amounts of exercise, if      regularly,  can improve our health.   
#82641
A
being carried out
B
carried out
C
carrying out
D
to carry out
推荐题目
On the one side of the road grass should be planted, and ______.
#80964
A
on the other are flowers
B
on another flowers
C
on the other flowers
D
on another are flowers
Only when their children leave home _________.
#84489
A
many parents did feel a sense of loss
B
did many parents feel a sense of loss
C
did feel many parents a sense of loss
D
do many parents feel a sense of loss
(2013·陕西西北工大附中一模) ________ a little earlier, you could have got a copy of his latest book.
#79813
A
If you would arrive
B
If you arrived
C
Should you arrive
D
Had you arrived
——Did you know any French before you arrived in Washington?——Never ____ it, actually.
#84092
A
had I learned
B
have I learned
C
I learned
D
was I learning