题目内容

The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.
A.being carried outB.carried outC.carrying outD.to carry out
B

试题分析:句意:这项实验表明适量的运动,如果有规律的完成,可以改善你的健康。这里是省略了相同的主语及be动词,整句完整的话应该是:The experiment shows that proper amounts of exercise, if the proper amouts of exercise is carried out regularly, can improve our health.选B。
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网