Every teacher and student __to plant a tree on the campus.

题目

Every teacher and student __to plant a tree on the campus.
A.has been told B.has told C.have been told D.have told

答案

选A.teacher and student是并列主语,当两个并列主语有every修饰时,谓语应该用单数.而teacher和student是“被告诉”应该种一棵树,所以要用被动语态.