第13题: [单项选择]The number of cell phones ______ increased dramatically in the past few years. A. have B. are C. has D. is 参考答案:C 答案解析:[解析] the number of意为“……的数量”,谓语动词用单数.例如:The number of books stolen from the library is large.(图书馆遗失的书
第17题: [单项选择]Sarah is the only one of all the students of this high school who______。by Peking University. A. are admitted B. was admitted C. were admitted D. is admitted 参考答案:B 答案解析:主谓一致题。在“one of+复数名词+who/that/which引导的关系分句”的结构中,谓语通常为复数,因为who/that/which关系代词靠近的是其前的复数名词,而不是one。但如果one