C. when did the first bus arrive D.when will the first bus arrive

　　( )24. I wonder how long_______school?

　　A. has he been away from B. he has been away C. he has left D. he has been away from

　　( )25. ---We can use MSN to talk with each other on the Internet. ---Really? Will you please show ____it? ‘

　　A. what to use B. how to use C. how can I use  D. where can I use

　　( )26. The teacher asked the students     . A. if they were interested in chatting online

　　B. when was Albert Einstein born C. what they will do with the computers D. how often they go to movies

　　( )27---Could you tell me how long __the book?--Three days.

　　A.I can keep B.can I borrow C.I can borrow D. can I keep

　　( )28.I can’t understand ___the boy alone at home.

　　A.why she left B.did she leave C.why had she left  D.why she leave

　　( )29. You will not succeeded if you ______ harder. A. will work  B. won’t work C. work D. don’t work

　　( )30.Write clearly __your teacher can understand you correctly. A.since  B.for C.because  Dso that

　　( )31.______he failed , he went on doing the experiment .A. Even B. Yet C. Although D. in spite of

　　( )32.The dog went out while we __ supper. A. had   B. had had  C. were having   D. would have

　　( )33.His brother has worked there ________ he left schoo A.when  B. after  C. since   D. until

　　( )34.The boy didn’t stop talking ____the second bell rang. A.when   B. until  C. after  D. because

　　( )35. __I came into the office, the teacher were having a meeting.A.While B. When C. Once D. Since

　　( )36.I was about to leave my house __ the telephone rang. A.while  B. as    C. when   D. since