九年级英语全册Unit10You'resupposedtoshakehands第三课时SectionAGrammarFocus_4c单元同步语法精讲精练作业课件新版人教新目标版

- Unit 10　You're supposed to shake hands. - 第三课时　Section A (Grammar Focus­4c) —单元同步语法精讲精练