（ ）21. -Where is Taiwan, do you know?
-Why? It’s ______the southeast of China.
A. on B. in C. to
（ ）22. -It’s a _______that you have missed the speech on how to learn English well.
-I’ll do better next time, mom.
A. pity B. chance C. pleasure
（ ）23.---What do you think of the songs sung by Jay Chou?
-They are wonderful,_________ I can’t hear the words clearly sometimes.
A. because B. though C. so
（ ）24. -_______ will it take you from your school to the library?
- About half an hour. So I’ll be there by 9 o’clock.
A. How far B. How soon C. How long