英语,改成复数句

英语,改成复数句 英语的单数句这么改成复数句 Whose toy is this?改成复数句 This is my dress.改成复数句. those are Chinese books.改成复数句 It's an eraser.改成复数句 this is my desk改成复数句 lt this a book 改成复数句 i am a student.改成复数句 I am your sister 改成复数句 Here is a map.(改成复数句) here is the book改成复数句 He's your techer.(改成复数句) what colour is it改成复数句 those hats are beautiful 改成复数句 改成复数句I like eating mango she wants a doll改成复数句 He is a baby.(改成复数句)