-why were you back to school last night?-because i ___my English book in the classroom.

问题描述:

-why were you back to school last night?-because i ___my English book in the classroom.
-why were you back to school last night?
-because i ___my English book in the classroom.
A.have forgotten
B.have left
C.had forgotten
D.had left
求详解

forget是不及物动词,不用于完成时,时间是昨晚,应该是过去完成时,建议选D