【小学中学教育精选】人教新目标七年级上Unit2 3a-Selfcheck课后训练及答案-免费英语教学资料下载

Unit 2 This is my sister.3a­Self Check练习 Ⅰ.用am, is或are选择填空1．Excuse me！______ this your eraser?2．Wha