Every student as well as teachers who to visit the museum asked to be at the school gate

网友回答

A. is; is
B. are; are
C. is; are
(答案→)D. are; is
解析：考查主谓一致。定语从句who are to visit the museum修饰先行词teachers，因为先行词是复数形式，所以定语从句也用复数。第二空与every student保持一致，用单数。句意：学生以及要来参观博物馆的老师都要要求准时在学校门口集中。