1 1. Is this the factory _____ you visited the other day? A. that B. where C. in which D. the one 2. Is this factory ____ some foreign friends visited last Friday? A. that B. where C. which D. the one 3. Is this the factory _____ he worked ten years ago? A. that B. where C. which D. the one 4. The wolves hid themselves in the places _____couldnt be found. A. that B. where C. in which D. in that 5. Here is so difficult a question ____. A. that no one can answer B. which nobody can answer it C. as no one can answer it D. as nobody can answer 6. The reason is ____he is unable to operate the machine. A. because B. why C. that D. whether 7. Antarctic ____ we know very little is covered with thick ice all the year round. A. which B. where C. that D. about which 8. May the fourth is the day ____ we Chinese people will never forget. A. which B. when C. on which D. about which 9. We are going to spend the Spring Festival in Guangzhou, __ live my grandparents and some relatives. A. which B. that C. who D. where 10. He has two sons, __________ work as chemists. A. two of whom B. both of whom C. both of which D. all of whom 11. Who can think of a situation ____ this idiom can be used? A. which B. that C. where D. in that 12. ____ people spend so much money on their pets ____ us a lot. A. That; surprises B. What; surprising C. How; are surprised D. That; is surprised 13. The thought____ Lao Gao would open a Sichuan restaurant in Los Angeles surprised his wife A. that B. what C. whether D. if 2 14. ____ we are doing has never been done before. A. That B. What C. Which D. Whether 15. Scientists believe native Americans arrived by crossing the land...
