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
        the room, the nurse found the tape recorder            .
#90853
A
Entering; stealing
B
Entering; gone
C
To have entered; being stolen
D
Having entered; to be stolen
He never let himself _____.
#98356
A
cheating
B
be cheated
C
being cheated
D
to be cheated
______ in her most beautiful skirt, the girl tried to make herself ______ at the party.
#95945
A
Dressing; noticing
B
Dressing; noticed
C
Dressed;noticing
D
Dressed; noticed
The old man, ________ abroad for twenty years, is on the way back to his motherland.
#93411
A
to work
B
working
C
to have worked
D
having worked