问题补充：
The mother asked her son.
A. what did he do the day before
B. where did he find his lost wallet
C. what time he got up that morning
D. that if he had finished his homework
答案：
A. what did he do the day before
B. where did he find his lost wallet
(答案→)C. what time he got up that morning
D. that if he had finished his homework
解析：asked后的宾从要用陈述语序，排除A,B；而D项多了连词that，所以选C。
