Question

【题目】—When did you do your homework? ( )

—I ______ my homework at six yesterday.

A.didB.doC.am doing

Answer 1

【答案】A

【解析】

句意：—你什么时候做作业的？—我昨天六点做作业。由yesterday可知该句是一般过去时，动词要用过去式。A. did过去式，B. do动词原形，C. am doing现在进行时结构，故选A。