精选优质文档-倾情为你奉上语法专练(一)be 动词的用法 (am/is/are)一、用 be 动词的合适形式填空1They _ my good friends.2Tom“ s mother _ a teacher.3How _ your parents?4My brother and I _ on the playground.5This _ not a big library.6You _ a good student.7_ your name Jenny?8I _ Jack“ s sister. Here _ a photo of my family.9That _ my book. Where _ your books?10My