16.The education system rather than the teachers ________ for the overburden on the students.
A. are to answer B. is to answer
C. are answered D. is answered
[解析]rather than 连接的并列主语，谓语动词采用就前一致原则。
[答案]B
17. The Canadian friends from our school have given us a lot of books, few of ________ a bit difficult for us Chinese students.
A. them are B. that is
C. which are D. which is
[解析]few of... 作主语，谓语动词用复数。
[答案]C
18.Quantities of water ________ every day with no people noticing it.
A. is wasted B. is wasting
C. are wasting D. are wasted
[解析]quantities of 作主语，谓语动词用复数。
[答案]D
19. Nobody but doctors or nurses and those ________ by Dr. Hun ________ to enter the patient's room.
A. invited; is allowed
B. are invited; are allowed
C. being invited; allowed
D. invited; are allowed
[解析]Nobody 作主语，谓语动词用单数。
[答案]A
20.This year an increased number of drivers ________ for overspeeding.
A. have punished B. have been punished
C. has punished D. has been punished
[解析]a number of 作主语，谓语动词用复数。
[答案]B
21.________ more to be pitied than blamed.
A. Uneducated are B. Uneducated is
C. The uneducated are D. The uneducated is
[解析]the+形容词作主语，谓语动词用复数。
[答案]C
22.—Each of the students, working hard at their lessons, ________ the book.
—So have I.
A. is reading B. has read
C. reading D. reads
[解析]each of... 作主语，谓语动词用单数。
[答案]B
23.Nowadays, a large number of women, especially those from the countryside, ________ in the clothing industry.
A. is working B. works
C. work D. worked
[解析]a large number of 作主语，谓语动词用复数。
[答案]C
24.The Palmers chose to buy the house as its surroundings ________ clean and quiet.
A. was B. being
C. had been D. were
[解析]its surroundings 为复数作主语，谓语动词用复数。
[答案]D
25.The role that China plays in world affairs ________ getting more and more important.
A. have been B. will be
C. is D. are
[解析]the role 作主语，谓语动词用单数。
[答案]C
26.Our farm is ________ Bill's.
A. twice bigger than B. twice as bigger as
C. bigger twice than D. twice the size
[解析]倍数的表达法：倍数+形容词的比较级+than...。
[答案]A
27.—It is generally ________ that new industries ________ for the southern part of the country.
A. agreed; are needed B. agreed; to be needed
C. agreeing; are needing D. agreeing; is needed
[解析]It is agreed that 据同意;new industries 作主语，谓语动词用复数。
[答案]A
28.Many a girl ________ fond of playing the piano in my class.
A. are B. is
C. have D. has
[解析]many a+单数名词作主语，谓语动词用单数。
[答案]B
29.An exhibition of paintings ________ at the museum next week.
A. are to be held B. are holding
C. is holding D. is to be held
[解析]an exhibition 作主语，谓语动词用单数。
[答案]D
30.The majority of the students in our class ________ satisfied with the condition.
A. were B. was
C. had been D. has been
[解析]the majority 作主语，谓语动词用复数。
[答案]A
