完成句子。 1. 每次出现什么问题,大家都把问题归咎于我. Whenever something goes wrong, everyone _______it ______ me. 2. 目前的研究只局限于增加生产利润,而不是确保转基因食品的安全. Research has been _______ _______ increasing production profits, rather than making sure that GM foods are safe. 3. 法律要求人人平等,不论种族、性别或出身. The law requires equal treatment for all, _______ ________ race, sex or origin. 4. 昨天,我看见他和另一个男孩彼得说话,我忍不住想他是不是想让彼得取代我做他最 好的朋友. Yesterday, I saw him talking to another boy, Peter, and I cannot ________ ________if he wants Peter to be his best friend instead of me. 5. 他离成为一名著名歌手已经不远了. He is on his way _______ ________ a famous singer.