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