24. Only a few stand-up comedians have become well-known ____ television and film actors later on in life. One such _____ person is Billy Crystal.

A. as ; / 　　　B. to ; an 　　　C. for ; the 　　D. / ; a

23. ______ you come to cities in China, you would have to take off your shoes before going into someone’s house.

A. Might　 　　B. Could　 　　C. Would　 　　D. Should

22.______ he is faced with, he always has a good attitude towards life.

A. Whichever difficulty　 　　　B. Whatever difficulty

C. No matter which difficulty 　　D. However difficult

第一节 单项填空(共15小题；每小题1分，满分15分)

21. He opened his mouth as if ________ something.

A. saying 　　　B. said　 　　C. to say 　　　D. be said