this is an apple中为什么要用不定冠词不用可不可以,能不能写成This is apple
this is an apple中为什么要用不定冠词不用可不可以,能不能写成This is apple
请问下英语里可不可以吧this is a big apple 改写成this apple is big?
is this an apple an orange__an egg
This is an apple就an apple部分转换提问
this is an apple.改成复数形式
an,is,apple,this连词成句
This is an apple 变为复数句子
This is ________(apple)
this is an apple 和 this is apple 哪个语法是正确的
This is [you] apple对吗
What color is this apple?
this is a apple改错