this is my book帮我改为复数句
this is my book帮我改为复数句
this is my book(改为复数句)
IS this his book?改为复数句 This is my pencil.改为同义句
句型转换This is a book【改为复数句】Those are my brothers【改为单数句】Is this
This is my book改为同义句
This is my cousin.(改为复数句)
This is my sister 改为复数句
This is an English book(改为复数句)
Is this an English book?改为复数句
this is an English book 改为复数句
this is a chinese book改为复数句
我英语卷子 That is my pencil 改为复数句 This is her brother改为复数句 Is th