The experiment shows that proper amounts of exercise, if  __  regularly, can improve our health.
#97485
A
being carried out
B
carrying out
C
carried out
D
to carry out
推荐题目
On average, 50 percent of those _____ said they would prefer to see Mr. Obama win the 2012 ticket, _____to just nine percent who prefer Mr. Romney.
#90909
A
to be questioned; compared
B
having questioned; comparing
C
questioned; compared
D
questioning; comparing
The missing boys were last seen _______ near the river.
#90108
A
to play
B
to be playing
C
play
D
Playing
She was reported by the hospital spokesman _____ excellent progress.
#95636
A
to make
B
to be making
C
made
D
having made