多吃蔬菜水果对健康有好处用英语咋说 __________your health to eat more vegetables and frut
问题描述：
多吃蔬菜水果对健康有好处用英语咋说 __________your health to eat more vegetables and frut
用适当形式填空
He can ______(hard) ride a bike
答
It's good for your health to eat more vegetables and frut.
He can hardly ride a bike为什么用It's而不用They are形式主语和形式宾语通常用在不定式中，用it代替。 形式主语it+ 谓语+ adj +to do sth.