1、单数的句子变成复数的句子把单数的句子成复数的句子很简单：变法是把能变成复数的词变成复数，但a或an要把去掉。特殊疑问词、形容词、国家及地点通常不变。 把下列句子变成复数 Eg: 1,I have a car we have cars 2,He is an American boy. They are American boys3,It is a car They are cars 4,This is an eraser These are erasers 5,That is a backpsck Th
2、ose are backpacks 6,He's a boy They are boys 7,She's a singer They are singers 8,What's this in English? What are these in English?
