20. I have bought two ballpens, ______ writes well.

A. none of which B. neither of which C. none of them D. neither of them

19. Do you know the reason ______ he was late .A. that B. which C. for what D. for which

18. He built a telescope ______ he could study the skies.A. in which B. with that C. through which D. by it

17. She is a teacher of much knowledge, _____ much can be learned.

A. who B. that C. from which D. from whom

16. His glasses, _____he was like a blind man, fell to the ground and broke its leg.

A. which B. with which C. without which D. that

15. Jeanne was her old friend, _____ she borrowed a necklace.

A. from who B. from whom C. to that D. to whom

14. The woman _____ my brother spoke just now is my teacher. A. who B. to whom C. to who D. whom

13. I'll never forget the day ______ I joined the League.A. on which B. in which C. which D. at which

12. Do you know who lives in the building ______ there is a well

A. in front of it B. in front of whose C .in front of which D. in front which

11. Which of the books ______ were borrowed from him is the best A. which B. what C. that D. whose