請問：這隻筆是誰的?英文要怎麼說呢?? | Yahoo奇摩知識+

請問：這隻筆是誰的?英文要怎麼說呢??還是只能用這隻筆的主人是誰來寫成英文@@?或是有其他的寫法~~拜託大家告訴我吧~~~~多謝= =我同學在國際村補英文他說他幫我問到的答案是：who's is the pen?(還是what's is the pen?)恩....到底答案是@@?他是跟我說who's 的's是當做受格的用法耶像he's pen這樣的用法這隻筆是誰的?Whose pen is this?關於你同學問到的答案who's is the pen應該是: whose is the pen?你這樣寫變成: who is is the pen?一