38.( 　) It’s not easy for him _____ his listening skills.　 A. improve 　B. to improve　 C. improving

37.( 　) Why ____ ask the teacher ____ help ?　 A. don’t; for　 　　B. don’t; to 　　C. not; for　 　

36.( 　) _____ of the twins has been to New York.　　 A. Both　 B. Nobody　 　. Neither 　　

35.( 　) Tony is very _____ his new MP3 and he always shows it to others.

　　 A. good at　 B. interested in　　 C. afraid of

34.( 　) I don’t know ____ with this problem. It’s too hard.

　　　 A. how to do　 　B. when to do　 　C. what to do　 　

33.( 　) You’ll fail the exam _____ you work hard.　 A. if　 B. unless　　 C. or

32.( 　) This student wrote ______ composition (作文) last week.

A. a 80-word 　　B. an 80-words　　 C. an 80-word　　 　　　　　　

31.(　 ) Chen Hui was chewing gum 　　　.　　 A. anyway　　 B. all the time　 C. all time　　

30.(　 ) I had a little trouble 　　　　English grammar.　 A. to learn　 B. learned　 C. learning　　　

29.(　 ) My grandfather 　　　us stories when I was young.

A. was used to tell　 B. used to telling　 C. used to tell