问题补充：
— didn’t Sally play the violin at the concert last night?
—She said that her hand hurt, but that was only an excuse. I saw her play tennis just now.
A. Why
B. Where
C. Which
D. What
答案：
(答案→)A. Why
B. Where
C. Which
D. What
解析：A. Why为什么 B. Where 在哪里 C. Which哪一个 D. What什么；句意：莎莉昨天晚上为什么没有在音乐厅拉小提琴？她说她的手受伤了，但是那只是借口，我刚刚还看见她在打网球。根据句意，故选A
