It's important for us to know how to operate some high-tech

It's important for us to know how to operate some high-tech It's very important for us Chinese students to know some bas It is important for us to know how _______ requests politely 英语翻译It's very important for us to learn how to protect our l It's neccessary for us to know some ways of____the building It's important for us to eat __________(health). It's very important for us to keep healthy It's important for us to _____ our environment.(protection) It's important for us to learn English well. 英语：It's important for us to eat healthy It's adj. for sb. to do It's important for us to It is important for us to ______.