ls that your key ?(改为复数)

ls that your key ?(改为复数) ls this your ruler改为复数句 ls he your brother?改为复数形式 Ls she your cousin改为复数形式 ls that your baseball?变为复数句 ls that your ruler?改为陈述句 ls that your ruler?(改为陈述句） Where is your key?改为复数句 Is it your key?改为复数 is that his key (改为复数形式) 把下列句子改为复数形式 This is my key That is your photo He ls that her beautiful dress?yes,itis改为复数形式