问题
选择题
–Why do you look so happy?
--I got good grade in English exam. My teacher said .
A. I was hard-working B. I am a good students C. I have worked hard
答案
答案：A
题目分析：said是say的过去式，故从句也用过去时态。句意：你为什么看起来这么高兴？我英语考试得了好成绩，老师说我是努力的。故选A。