英语宾语从句选择题,麻烦解释原因

英语宾语从句选择题,麻烦解释原因
1..who is the man is reading a book over there?
a.that b.which c.whose d.who
2.where can i find some pictures of famous people i can use in my english class?
--well!you can find them on the internet.
a.which b.who c.what d.whom
3.my grandparents like to live in a house is not very big but bright and comfortable.
a.that b.where c.what d.whose
4.where do you work,mr black?
--i worked in a shop sells food and drinks.
a.what b.which c.where d.who
5.can you lend the book the other day?
a.that you talked b.you talked about it c.which you talked to d.you talked about
6.how about the book?it’s about english study.
--oh,this is i wanted.
a.the one what b.which c.one which d.the one