“who else`s is it?

Who's book is this?It's not mine.It's_____ A.someone else B. who else's pen is this?的同义句 whose else=who else’s吗? who else's book could it have been?中的else‘s如何发音? 八年级英语_____book is this one?A Who's else B Whose else's C Who it is w___ to steal someone else's poem. if the book isn"t yours,____can it be?(who else"s )为什么不填what If this book is not yours,( ) can it be?A,what else B,who el 1.If this mobile phone isn't yours ,____ is it?A who else B Who else is at home是什么意思 this shirt is not mine.it's（someone else's) 为什么填这个 Who's that?A It's Tom BThis is Tom Who's car is this?It's hers.