问题补充：
Our teacher told us that .
A. Anna is going to have a party
B. he will be away for a few days
C. Sam wins first prize for his dancing
D. light goes much faster than sound
答案：
A. Anna is going to have a party
B. he will be away for a few days
C. Sam wins first prize for his dancing
(答案→)D. light goes much faster than sound
解析：本题考查的是宾语从句时态，当主句为一般过去时时，从句用一般过去时的相应形式，但是客观真理除外，要用一般现在时，故选D
