Every student as well as all the teachers required to be at the bus station at 6:30 tomor

问题补充：

Every student as well as all the teachers required to be at the bus station at 6:30 tomorrow.

A. are

B. is

C. were

D. was

答案：

A. are

(答案→)B. is

C. were

D. was

解析：因为as well as连接两个主语时，谓语动词的数应与前一个主语保持一致；又因为并列主语前有each等修饰语时，谓语动词用单数形式。