（单数句子变成复数） 1.This is a map.2.That's an orange orange.3.—What's this?—It's a watch.

（单数句子变成复数） 1.This is a map.2.That's an orange orange.3.—What's this?—It's a watch. whose knife is this?将句子变成复数 把下列句子变成复数形式.This is a watch. this is not my umbrella.把句子变成复数形式 is this mary‘s doll?将句子变成复数 this is a bix.变成复数的句子怎么变 Is this his eraser 把这句单数句变成复数句 （单数句子变复数） 1.—Is that your family? —Yes,it is. 1.this is a bus（改为复数句子） 复数变成单数,单数变成复数的英语句子每个都要2个 在复数句子变单数中如果句子里面有are 那么是要吧句子are变成is还是am? Is this his brother?(改为复数句子) Is he my friend?（做出肯定,否定回答） Those are her pencils.(改为单数句子) 帮我吧英语句子单数的转换成复数,复数转换成单数!1.This is a bus2.That is a box3.It is an orange4.These are English books5.Those are Chinese books6.They are my pencils This isn't an English book.变复数.Are they rulers?变单数.How is he?变成复数还是单数啊,应该怎么变 三年级单数句子变成复数句子的题有哪些? 将下列句子改为单数或复数形式1.This is a T-shirt in the box.[改为复数]2.These are knives.[改为单数]3.It is an apple.[改为复数]4.They are students in the school.[改为单数]5.That is a welf.[改为复数]6.Is there a book in This is a nice dresser.（变成复数形式） 一般疑问句单数变复数的变化Is this His coat变成复数可不可以是 Are these his coats,还有 Is this your coat变成复数是 Are these your coats而不是Are these these coats.变化规律是什么,