it is very important for us to be in a good mood中为何用to be.it指代什么?

it is very important it is very important to people 对because it is very important提问 It's happy is very important! 英语问题it is very important to youit is very important to you怎么翻译 It is important to like someone.It is very important to love yourself. 英语翻译It is very important for us to ( )( )( )( )our lives Money is very important,but it doesn't mean e_____. it is very important for students to often. Is it very important have healthy food?改病句 (breakfast / very / eat / important / it /to /is )every day. .It is very important to keep healthy.这句话对吗? And you?It is very important for me! it is very important to living things是什么意思 It is a very important story.什么意思. It is very important to eat ______(health) 阅读our food is very important.we like eating it happiness is very important