精选优质文档-倾情为你奉上一单项选择1. Bob never does his homework_ Mary. He makes lots of mistakes.A. so careful as B. as carefully as C. carefully as D. as careful as2.Now air in our town is _ than it used to be. Something must be done to it.A. very good B. much better C. rather than D. even worse3. I feel _ better than yesterdayA.more B. very C. the D. far5.This book is _ on the subject .A. the much best B. much the best C. very much best D. very the best