It's important for us to eat healthy food
It is +形容词+for sb to do sth
To do sth is +形容词+for sb
这两个结构可互换
To eat healthy food is imortant for us.(改为同义句）
______ important for us ______ ______ ______ ______.
It's important for us to eat healthy food
It is +形容词+for sb to do sth
To do sth is +形容词+for sb
这两个结构可互换