Do you know who the pen belongs to?belong后为什么加s?

Do you know who the pen belongs to?belong后为什么加s? do you know who the computer belongs to Taiwan it belongs to china.belong为什么加s The car is belongs to me.为什么belong要加s? 改同义句Do you know who the computer belongs to?Do you know____ Do you know who this dictionary belongs to?为什么用who,不用whom who do you know does the book with a red cover belong to Who do you think the one whom belongs to it is belongs to me belong后面为什么要加s 1、Do you know who the pen ______? This dress belongs to my sister.为什么是belong+s Do you know who this dictionary belongs to?Oh,it's___ A.me B