It's important for us to learn English well.其中“it's”做什么语?

It's important to 和 It'important for 的区别 It's very important for us It's important for us_____________in good health. it’s important for you and me. It is important for u什么a good breakfast it's not important where u are today it's where u are headed,什么意 It's important for sb是That's important for us.还是That’s important to us. it's important to sb.和it’s important for sb.的区别 it’s important to...和it’s important for...有何区别 It' important to sb还是It's important for sb好,我都搞晕了 It's important for us ______ a good breakfast it's very important for us ____ good tv programs It's important for him to work on their farm It’s important for everyone to healthy改错 It's important for students to be____(仔细)in class. 英语：It's important for us to eat healthy It's important for us to _____ our environment.(protection) You can download something important,sometimes it's for free.