31. Have you ever dreamed of playing in front of thousands of people at a concert, 　　　　_______everyone is clapping and appreciating your music?

　 A. in which　 　B. for which　　　 C. from which　　　 D. at which　

30. Sometimes they may play to passers-by in the street or subway so that they can earn some______ money for themselves or to pay for their instruments.

　 A. certain　　　　　　 B. extra　 　C. various　 　　 D. unusual

29. The band 　　　　　　about 1970, but happily they reunited in the mid?1980s.

　 A. broke up　 　　 B. broke down　 　C. broke out　 　　　 　D. broke in

28. As a result these endangered animals may even 　　　　.

　 　A. die away　　 B. die down　 　　C. die out　　　 D. die off

27. I’m protecting myself 　　　　mosquitoes.

　 A. from　　　 B. in 　　　C. on　　　　 D. at