If this dictionary is not yours , ____ can it be ? 选择题?

If this dictionary is not yours , ____ can it be ?

A:what else B:who else C:which else's D:who else's

答案是D 为什么？ 怎么翻译？

diction的译义? what will happend to this world if someday i gone? 高手帮翻译 ： If i could take this moment forever if this dictionary is not years ( ) can it be? ---would you solve the problem if this method failed? If the work by the end of this month is .... if i say i don't think much of this book,this means that- 蓝屏出现If this is the first time you've seen this... these steps: 怎么办？ I loss my diction becuse you.是什么意思 If this is the first time you've seen this stop error screen,restart your computer.