51. It’s quite warm _____ January.

　　 A. in B.for　　 C. on　　 D. at

50. The ship sailed _____ Xiamen _____ 30 miles an hour.

　　 A. for, at　　 B. to, at　 C. to, by D. for, by

49. Luckily, the bullet narrowly missed the captain _____ an inch.

　　 A. by B. at　 C. to D. from

48. What he had done is far from _____.

　　 A. satisfaction　 B. satisfactory　 C. satisfied　 D. satisfying

47. One of the methods of introducing foreign genes into a plant is to make use of certain

　　 soil bacteria to infect the plant and transfer several of blue genes to the infected plant

　　 cells, _____ in high rate of plant cell pision.

　　 A. results　　 B. resulting 　　 C. to result　 D. resulted

46. The manager discussed the plan that they would like to see _____ the next year.

　　 A. carry out B. carrying out　 C. to carry out　 D.carried out

45. The subjects we have at school _____biology.

　　 A. including B.include　　 C. included　 D. to include

44. The electricity ____, the light went out.　

　　 A. cut off　　 B. having cut off　　 C. was cut off　 D. had cut off

43. I don’t like _____ speaking ill of each other.

　　 A. Jack and Henry　　 B. Jack’s and Henry’s

　　 C. Jack and Henry’s　 D. Jack’s and Henry

42. There is a crowd of people in front of the house over there. What do you suppose

　　 _____ there?

　　 A. is happened　　 B. has happened

　　 C. happening　 D. to have happened