it is good for us to be动词是哪个?

it is good for us it is good for us to be动词是哪个? it is imperative for us to remain on good terms is it good for for us or bad for us it is good for us study english it is not good for us to fight with others 这里为什么it is not good for us to fight with others 这里为什么是to fight it is good manners for us to thank our h__when we are invited to have dinner Reading is good for us同义句改写It is good for us( )( ) It is a good world for us to walk around 是啥意思?急! The writer thinks it is good for us to take a shower every morning it is good for us to take exercise every dayto take exercise 的成分是什么 It is a good design (设计) p___ for us to learn Is it good or bad for us to take mobile phone英语作文怎么写 It is good for us to eat vegetables.改为同义句 It is really a good ( c ) for us to practic english It is good for us to plant more t_____首字母填空 It is good for us to eat more green vegetables.英译汉 But is it good for us to surf the Internet?用法对么?