The tool with _____he is working is called a pump.
问题描述:
The tool with _____he is working is called a pump.
答
The tool with which he is working is called a pump. 相当于The tool which he is working with is called a pump.他用的工具叫抽水泵He is working with a tool (which is) called a pump.也表达同样的意思be wor...