He said to us that he the teacher’s instructions.
A. must follow
B. followed
C. follow
D. must have followed
网友回答
A. must follow
(答案→)B. followed
C. follow
D. must have followed
解析：句意：他对我们说,他遵循着老师的指令。must follow 必须听从；must have followed是对过去的推测，表示过去曾经做过某事；这里是直接引语间接引语，that后应用过去式。根据主句的谓语 said是过去时，所以后面的宾语从句的谓语动词也要用过去时。故选B。