6. Apple eaters are healthier than those ^don’t. who 7. The students who don’t know the answers. ^ can raise your hands. 8. There are many people there, but none of whom I know.
9. That is all what I have known. that 10. Is this ^book you
are interested in? the Or: Is this book the one
you are interested in? 二：先行词是物的定语从句：The house -which- you saw is a library.
1. The house -that- lies in the back of our classroom is the teachers’ office.
2. The house -whose- door faces north is our teachers’ office. 3. The house -the- -door- of -which- faces north is our teachers’ office.
4. The house -on- -whose- door there is “ Be Quiet” is our teachers’ office. 5. These are all the things -that- I can get for you.
6. The only thing -that- I can do is to wait.
7. I can still
remember the first toy -that- my mother bought for me.
8. There is nothing -that- can keep me back..
9. They are the very things -that- make us interested.
10. We should care more about the people and the things -that- are around us.
11. The manager is warm-hearted,-in- -whose- company my father works. 13.These are the
situations -in- -which- \\ where- we often feel nervous.