that
it形式主语,后taking exercise regularly does good to one’s health 为真正主语,防止头重脚轻,所以用it 来当形式主语
It has been proved ____taking exercise regularly does good to one’s health
It has been proved ____taking exercise regularly does good to one’s health
英语人气:330 ℃时间:2020-01-24 22:59:35
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