40.　　 Three-fourths of the buildings ______.

a. was destroyed　　 b. is destroyed　　 c. were destroyed　　 d. has been destroyed

39.　　 Four-fifths of the crop ______.

a. are ruined　　 b. was ruined　　 c. were ruined　　 d. have been ruined

38.　　 The majority of the damage ______ easy to repair.

a. is　　 b. are　　 c. were　　 d. be

37.　　 The majority of doctors ______ smoking is harmful to health.

a. are believed　　 b. had believed　　 c. has believed　　 d. believe

36.　　 The number of articles published on smoking ______ amazing.

a. is　　 b. are　　 c. were　　 d. have been

35.　　 A number of cars ______ in front of the park

a. is parked　　 b. was parked　　 c. are parked　　 d. has parked

34.　　 The president, accompanied by (由……陪同) his assistants, ______.

a. have arrived　　 b. are arriving　　 c. had arrived　　 d. has arrived

33.　　 Interest, as well as prospects, ______ important when one looks for a job.

a. are　　 b. were　　 c. is　　 d. was

32.　　 All but him and me ______ to the exhibition.

a. am going　　 b. is going　　 c. are going　　 d. was going

31.　　 No one except two students ______ the meeting.

a. has been late for　　 b. have been late for　　 c. was late for　　 d. were later for