英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。以下是小编整理的高考定语从句练习题，欢迎阅读。

　　1. Don’t talk about such things of __________ you are not sure.

　　A. which B. what C. as D. those 2. Is this the factory __________ you visited the other day?

　　A. that B. where C. in which D. the one

　　3. Is this factory __________ some foreign friends visited last Friday? A. that B. where C. which D. the one

　　4. Is this the factory __________ he worked ten years ago?

　　A. that B. where C. which D. the one

　　5. The wolves hid themselves in the places __________ couldn’t be found.

　　A. that B. where C. in which D. in that

　　6. The freezing point is the temperature __________ water changes into ice.

　　A. at which B. on that C. in which D. of what

　　7. This book will show you __________ can be used in other contexts..

　　A. how you have observed B. what you have observed

　　C. that you have observed D. how that you have observed

　　8. The reason is __________ he is unable to operate the machine.

　　A. because B. why C. that D. whether

　　9. I’ll tell you __________ he told me last week.

　　A. all which B. that C. all that D. which

　　10. That tree, __________ branches are almost bare, is very old.

　　A. whose B. of which C. in which D. on which

　　11. I have bought the same dress __________ she is wearing.

　　A. as B. that C. which D. what

　　12. He failed in the examination, __________ made his father very angry. A. which B. it C. that D. what

　　13. We’re talking about the piano and the pianist __________ were in the concert we attended last night.

　　A. which B. whom C. who D. that

　　14. The girl __________ an English song in the next room is Tom’s sister.