The experiment shows that proper amounts of exercise, if regularly, can improve our health. A. being...
2023-01-15 21:28:42 148次 2011年山东省青岛市高考模拟练习题（一）英语题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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
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