( )31. The summer holiday will start, I’m looking forward _____ coming back to China.

　　A. in B. at C. to D. for

　　( )32. —Is this bag yours? —No, it’s not _______.

　　A. mine B. me C. I D. me bag

　　( )33. —Sally, I am going to Shanghai tomorrow.

　　—_________.

　　A. Well done B. With pleasure C. Have a good time D. Not at all

　　( )34. People ________ need to travel by buses or bikes any more in the future.

　　A. will B. not will C. won’t D. can’t

　　( )35. ________ he will come back in three days.

　　A. May be B. Maybe C. Can D. May can

　　( )36. In a few years, there ________ hundreds of trees on the mountain.

　　A. will have B. will be C. are there D. be have

　　( )37. ______ is your plan for the weekend?

　　A. What B. How C. Which D. When

　　( )38. I can play the guitar, but I _______ play the violin.

　　A. don’t B. am not C. can’t D .must

　　( )39. Linda is looking for her camera, but she can’t ______ it.

　　A. look for B. find C. finds D. finding

　　( )40. Please be careful _______ the knife, or you’ll cut yourself.

　　A. with B. to C. for D. at