——What are they?——They are buses.怎么改为单数形式
问题描述:
——What are they?——They are buses.怎么改为单数形式
答
单数形式:What is it?它是什么?It is a bus.它是一辆公共汽车.
——What are they?——They are buses.怎么改为单数形式
单数形式:What is it?它是什么?It is a bus.它是一辆公共汽车.