This is the question_______we are talking about now.

This is the question_______we are talking about now.
A.that B.who C.where D.when
This is the dictionary_______Mum gave me for my birthday
A.which B.what C.whose D.whom
Shaolin Temple________lies in the wst of ZhengZhou welcomes the visitors both at home and abroad.
A.where B.which C.who D.what
The book_______was written by Yu Dan sells well.
A.who B.which C.how D.what
Jack,there is someone in the office_______would like to speak with you.
A.who B.which C.whom