24. Is this the shop _____ sells children’s clothing?

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

23. October 1,1949 was the day _____ the People’s Republic of China was founded.

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

22. October 1,1949 is the day _____ we’ll never forget.

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

21. The time _____ we studied together is not easily forgotten.

20. Do you still remember the day _____ we first met?

　 A. that　　　　　　 B. when　　　　　 C. what　　　　　 D. on that

19. The factory _____ Mr. Li used to work was closed last week.

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

18. Have you visited the house _____ the famous scientist was born?

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

17. This is the school _____ Mr. Smith once taught.

　 A. in that　　　　 B. when　　　　　 C. where　　　　　 D. there

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