Drinking enough water every day is good for our health.good 还有Watching a foodball game is fun to him.Watching foodball g
问题描述：
Drinking enough water every day is good for our health.good 还有Watching a foodball game is fun to him.Watching foodball game 还有 They have Been good friend for many years.good friend 句子成分谢谢
答
Drinking enough water every day is good for our health,动名词短语Drinking enough water做主语,is系动词,后面s good for our health是表语,第二句类似也是主系表结构.第三句they作主语,been系动词,后面表语,此句...