whose pants is this 改错

whose pants is this 改错 Where are the black pants?为什么用are Whose is this pair of pants?为什么用 is Where are the black pants?为什么用are Whose is this pair of pants?为什么用 is Whose book is this? Whose ruler is this? whose is this book? “Whose room is this? Whose hat is this? This is a pair of pants.和they are pants. whose pants are those? whose spanner is this 翻译 whose sweater is this是什么意思 Whose game is this?中文 whose money is (this,these)? Whose is this book ?对吗? whose home is this翻译 this,whose,toy,is,bear(?) whose home is this?翻译 Whose computer is this.[同义]