把下列句子变成复数形式.This is a watch.

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 把下列句子变成复数形式.It is your dictionary. 把下列句子变成复数形式.Is he a student? 把下列句子变成复数形式.It is a map. 把下列句子变成复数形式.Is it a thriller? 把下列句子变成复数形式.It is a photo. 将下列句子变成复数形式My blouse is newMy blouse is newI'm a teacher This is your case 怎样讲解英语中把句子变成复数形式,如This is her sister.其中her要变成their吗 把下列单词变成复数形式it-?this-?that- cake- bag- orange- is- bus- friend- watch- eraser- 把下列句子变成复数形式例如:The boy is Lazy.------The boys are lazy.1：That girl is very beautiful.------__________________.2:He is an engineer.-----___________________.3:Is she a doctor?-------________________.4:This is not my umbrella. 把下列句子变成复数形式例如:The boy is Lazy.------The boys are lazy.1：That girl is very beautiful.------__________________.2:He is an engineer.-----___________________.3:Is she a doctor?-------________________.4:This is not my umbrella. 把下列句子改为复数形式 This is my key That is your photo He把下列句子改为复数形式This is my keyThat is your photoHe is my friend要方法 This is my parent.(变成复数形式) 把下列句子改为复数形式He's my friend.This is my parent.That is his sister.Is this a photo?Is he your brother? 将下列句子变成复数形式：This is my sister.Is that a vlue jacket?That is her cousin.Here is my family photo.What's this in English?What color is your ruler?还有：This is my sisiter. This is a long river.变成复数形式. This is a nice dresser.（变成复数形式）