【题目】Every student as well as some teachers who_____ to visit the museum _____ required to be at the bus station at 6:30.
A. are; are B. are; is
C. is; are D. is; is
在线课程【答案】B
【解析】考查单复数；因为前面“visit the museum”修饰的是“学生和老师”，所以后面的系动词用复数形式are;又因为主句的主语every student，因此后面的系动词需要用第三人称单数is,故选B.