英语翻译③课前预习；上课认真听；课后复习并按时完成作业.④我认为这个奖不应该授予史密斯先生

①她要等到恢复健康才能出去.She can't go out until she is all right.
②学好英语对我们是有必要的 It's neccessary for us to learn English well
③课前预习；Get your lessons ready before class
上课认真听；Listen carefully in class
课后复习并按时完成作业.Go over your lessons and finish your homework on time after class
④我认为这个奖不应该授予史密斯先生I don't think Mr.Smith deserves the prize.