( )12. I like writers _______ write short stories.

A. which B. what C. whom D. who ( )13. This is the question _______ we are talking about now.

A. that B. who C. where D. when ( )14. —What are you looking for?

—I am looking for the book _______ I bought yesterday.

A. who B. which C. whose

( )15. Jack, there is someone in the office _______ would like to speak with you.

A. who B. which C. whom

( )16. If a bag is filled with books and pens, it must belong to someone _______ works hard.

A. which B. / C. whom D. who

( )17. Many young people prefer the songs _______ have great lyrics.

A. which B. who C. where D. whom

( )18. Even teachers can’t understand some expressions _______ their students use in daily life.

A. whose B. who C. that D. whom ( )19. The book ____ is torn is mine.

A. the cover of which B. the cover of that

C. which the cover D. whose cover of

( )20. He talked about the classmates and the school ____ he had visited.

A. who B. that C. which D. about which