1. One-third of the area _____ covered with green trees. About seventy percent of the trees _____ been planted.
A. are; have B. is; has C. is; have D. are; has
2. The number of teachers in our college _____ greatly increased last term. A number of teachers in this school _____ from the countryside.
A. was; is B. was; are C. were; are D. were; is
3. What _____ the population of China? One-third of the population _____ workers here.
A. is; are B. are; are C. is; is D. are; is
4. Not only he but also we _____ right. He as well as we _____ right.
A. are; are B. are; is C. is; is D. is; are
5. What he’d like _____ a digital watch. What he’d like _____ textbooks.
A. are; are B. is; is C. is; are D. are; is
6. He is one of the boys who _____ here on time. He is the only one of the boys who _____ here on time.
A. has come; have come B. have come; has come
C. has come; has come D. have come; have come
7. Either you or he _____ interested in playing chess. _____ you or he fond of music at present?
A. are; Are B. is; Are C. are; Is D. is; Is
8. Many a professor _____ looking forward to visiting Germany now. Many scientists _____ studied animals and plants in the last two years.
A. is; have B. is; has C. are; have D. is; are
9. A knife and a fork _____ on the table. A knife and fork _____ on the table.
A. is; is B. are; are C. are; is D. is; are
10. Her family _____ much larger than mine four years ago. Her family _____ dancing and singing when I came in last night.
A. were; was B. was; were C. was; was D. were; were
2.B【解析】考查主谓一致。“the number of+名词”作主语，谓语动词常用单数形式。“a number of+名词”作主语，谓语动词常用复数形式。故选B。
3.A【解析】考查主谓一致。“分数或百分数+of the population”作主语，谓语动词常用复数形式。故选A。
4.B【解析】考查主谓一致。or, either...or, neither...nor, not only...but also等(关联)连词连接两个并列主语时，谓语动词的数按“就近原则”处理。注意：即使在疑问句中，动词的数也应与最近的主语保持一致。as well as连接两个并列主语时，谓语动词的数应与前一主语保持一致。故选B。
5.C【解析】考查主谓一致。what引导的名词性从句作主语时，谓语动词常用单数形式。但当作表语的名词为复数，或what从句是一个具有复数意义的并列结构时，谓语动词常用复数形式,如：What I say and think are no business of yours.故选C。
6.B【解析】考查主谓一致。在“one of +复数名词+定语从句”的结构中，定语从句中谓语动词常用复数;在“the(only)one of +复数名词+定语从句”的结构中，定语从句中谓语动词常用单数。故选B。
8.A【解析】考查主谓一致。“many a +单数名词，more than one+单数名词”作主语，尽管从意义上看是复数，但谓语常用单数形式。故选A。
10.B【解析】考查主谓一致。第一句的her family应理解为“她的家庭”;第二句的her family应理解为“她一家人”。故选B。
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