My best friend can share things ________ me and help people ________ trouble. [ ]

You are well-dressed today．—Thank you．I want to _____ a good impression _____ the interviewer．

Willie will learn swimming, no matter how much it ____.

A lot of e-mail English words come_____a computer program _____ ICQ.[ ]

More and more people found _________ necessary to have a balanced diet.