The experiment shows that proper amounts of exercise, if ________ regularly, can improve our health.
A.being carried out | B.carrying out |
C.carried out | D.to carry out |
推荐试卷
The experiment shows that proper amounts of exercise, if ________ regularly, can improve our health.
A.being carried out | B.carrying out |
C.carried out | D.to carry out |
试题篮
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