2020_2021学年高中英语课时作业17Unit9WheelsLesson3CleanMachines含解析北师大版必修3

Unit 9 Wheels课时作业17　Lesson 3　Clean MachinesINCLUDEPICTURE"基础检测.tif"Ⅰ.单词拼写1．There is plenty of sunlig