将下列句子改为复数句1this is hs sister 2.that is my brother 3it is a box

将下列句子改为复数句1this is hs sister 2.that is my brother 3it is a box 将下列单数句改为复数句 Is this your pencil?Is that your cousin?Where is your key?Is it on the chair?This is a dog. 将下列英语句子改为复数句,1.This is a cup2.Is that an orange?3.Is the boy your friend?4.That is Alan‘s jacket.5.It is a ruler 按要求写句子1、This is an art room 【改为复数句】就这句, 将下列句子改为复数形式 (1)this is a pretty dress.(2)lt's a将下列句子改为复数形式(1)this is a pretty dress.(2)lt's a nice room.(3)my app|e is red.(4)that is her skirt. This is her brother.改为复数句子 this is my teacher.改为复数句子 Is this your knife 改为复数句子 this is a hotei 改为复数句子 this is a woman.(改为复数句子) this is a hotel 改为复数句子 将下列句子改为复数形式 This is a book 改为复数句 This is a pear.改为复数句 This is an orange改为复数句 is this your dress?改为复数句 This dress is pretty.(改为复数句) this apple is red改为复数句