26. Mr. Tai looks pretty ____ the blue sky.

　　A. against B. of C. with D. in

　　27. He is not at home. He has gone to Beijing ____ business.

　　A. at B. on C. in D. for

　　28. He sold it ____ twenty dollars at a second-hand store.

　　A. of B. with C. for D. on

　　29. The plane flew ____ a height ___ ten thousand meters ____ sea level.

　　A. at， for， over B. to， of， above C. to， of， over D. with， at， above

　　30. The patient was warned ______ smoking.

　　A. of B. against C. with D. without

　　31. The clerks were paid _____ the month.

　　A. with B. of C. on D. by

　　32. Remember me _____ our old friends.

　　A. of B. to C. with D. for

　　33. They are so alike. I can't tell him ____ his brother.

　　A. from B. of C. between D. with

　　34. Don't take any notice ____ her. She often tells lies.

　　A. of B. to C. with D. over

　　35. What do you come here _____ ?

　　A. for B. of C. with D. /

　　36. Have you any reason ____ saying such a thing?

　　A. of B. with C. for D. about

　　37. They are walking about the park arm ____ arm.

　　A. in B. with C. by D. of

　　38. Let's fight shoulder ____ shoulder.

　　A. to B. by C. in D. for

　　39. Put the two books side _____ side.

　　A. with B. of C. in D. by

　　40. Don't get out _____ the rain without an umbrella.

　　A. to B. at C. in D. of

　　41. My teacher's plan is different ____ yours ____ the methods of teaching.

　　A. from， in B. between， in C. with， on D. from， on

　　42. He is tall ____ six-year-old child.

　　A. of B. for C. with D. to

　　43. China is rich _____ oil.

　　A. of B. in C. on D. with

　　44. Mr. Wilson， you are wanted ____ the phone.

　　A. by B. with C. on D. in

　　45. The train is running ____ a speed of 60 miles an hour.

　　A. on B. by C. with D. at

　　46. This sort of black tea is sold ____ 3 dollars a pound.

　　A. at B. by C. in d. with

　　47. I saw a picture ____ the wall and a hole ____ the wall beside it.

　　A. on， in B. in， on C. in， in D. on， on

　　48. What are you busy _____ ?

　　A. with B. to C. for D. of

　　49. The teacher told us he would question us _____ grammar rules.

　　A. on B. for C. to D. with

　　50. My father makes a living _____ teaching.

　　A. in B. on C. by D. through