填stay原因:It's+adj+(for sb)+to do sth
it 是形式主语，而真正的主语是to do sth
It is important for us to s﹍ healthy in our life. 首先确定要填一个动词，其次在八上新目标第一单元会出现这个短语
stay healthy=keep healthy=be/keepin good health保持健康...
1.It is important for us to （stay） healthy in our lifestay healthy=keep healthy保持健康2.We should have a good （diet）diet，饮食a good diet 好的饮食（习惯）3.We should eat a lot of （...
