6. There is a tall tree outside, ________ which stands our teacher.

5. She has three children, all _______ whom are at school.

4. The wolf ________ which the sheep was killed was shot.

3. The woman, ________ whom I learned the news, is a nurse.

2. He built a telescope ________ which he could study the skies.

1. The pencil ________ which he wrote was broken.

16. He is the most careful boy _____ I know.

　 A. what　　　　　　　　　　 B. which　　　　　　　 C. as　　　　　　　　　　　　　　 D. ./

15. Don’t go in, this is the shop _____ we have just been _____.

　 A. /, to　　　　　　　　　　　 B. that, /　　　　　　　　 C. where, to　　　　　　　　 D. which, there

14. Those _____ made no mistakes in today’s exercises please raise your hands.

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

13. The boy _____ has two lovely dogs.

　 A. who live next door　　　　　　　　　　　　　　 B. which lives next door

　 C. whom lives next door　　　　　　　　　　　　 D. that lives next door