-Where is our English teacher? -She is in the classroom, the exercises the stude

—Where is our English teacher?

    —She is in the classroom, _____ the exercises _________ the students have done at home.

   A. explaining; /            B. explaining; for

   C. explained; to          D. explained; from

试题答案

A

解析:

explain的逻辑主语是she，用explaining表伴随状语，the students have done at home为定语从句，省略了关系代词that/which。故选A。