A. work B. supportive C. nurse D. further

A. which was written B. writing C. written D. which wrote 38. Louis Pasteur invented the process of pasteurization and developed vaccines for several diseases________rabies.

A. include B. included C. including D. inclusive 39. Last week, our class went to Ha Long Bay for a picnic,________US very happy then. A. which made B. that made C. made D. which was made

40. The last person________the room must turn off the lights. A. to leave B. who leave C. that leave D. leaves

41. Anna seems to be a bright student. She’s always the first________her work. A. finishing B. to finish C. being finished D. to be finish 42. Nearly all of the reporters________the press conference had questions________. A. attend - asked B. attended - to ask

C. attending - to ask D. would attend - to be asked 43. Drinking water________excessive amounts of fluorides may leave a stained or mottled effect on the enamel of teeth.

A. containing B. which contain C. contained D. which are contained 44. The explanation________for the problems didn’t satisfy anybody. A. giving B. which gave C. given D. having given 45. Designers are experimenting with a new material________flexibly with lightness. A. is combining B. combining C. combines D. combination of 46. ________depends on your gentle persuasion. A. That he agreed to help you B. That he agrees to help you C. Whether he agrees to help you D. Whether he agreed to help you 47. The chairman requested that________. A. the member study the problem carefully B. with more carefulness the problem could be studied C. the problem was more carefully studied D. the members studied more careful the problem 48. ________seemed a miracle to US.

A. His recover after so soon B. That he recovered so soon

C. His being recovered so soon D. When he had recovered so soon 49. ________, we drove the horses into the stable

A. Aware that a tornado was brewing B. Because a tornado brewing