This is an apple.改为复数句 Those are our desks.改为单数句 I like noodles for breakfast.改为否定句They do their homework every day.（用he代替主语they）Al lot of broccols is in the box.（改为同义句）这个房间有三个

this is an apple怎么改为复数句 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 这是一个苹果,改为疑问句is this an apple?这是一个苹果吗?请问这样改对吗? this is an apple tree改为复数形式有助于回答者给出准确的答案 把This is an apple改为一般疑问句作肯定回答 That's a ruler.对 a ruler 提问.Is this an apple?改为复数句子. 求句型转换题 This is an red apple.【改为负数】 It is an apple改为否定句 this apple is red改为复数句 this is an apple.改成复数形式 This is an apple 变为复数句子 an,is,apple,this连词成句 This is a book （划线部分提问）划线:book It is an apple.(改为否定句) She is OK.改为一般疑问句This is a ruler.改为一般疑问句This is an apple.对划线部分进行提问 画线：an appleIt is an orange.(改为否定句） 简单英语句型转换1.It is an English-Chinese dictionary.(改为一般疑问句)2.This is an apple and that is a pear.(转化成复数) this is an apple 和 this is apple 哪个语法是正确的 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