2020《导与练》高考英语人教版一轮复习课件：选修8 Unit 3　Inventors and inventions 单元知识检测-302edu教育资源网

4.He wanted to 　　　　　　　　(一心投入) the heart of the matter. 5.The machine is 　　　　　　　　(出毛病)and we should have it repaired.

答案:4.dive into　5.out of order

获取资源