Tom killed the cat. I’ll ask him why .
A. he did that
B. did he do that
C. he does that
D. he had done so
网友回答
(答案→)A. he did that
B. did he do that
C. he does that
D. he had done so
解析：考查名词性从句的语序和时态。句意：Tom把那只猫杀死了，我要问他为什么这样做。根据句意说明这件事是已经发生的事情，所以使用一般过去时。同时在宾语从句中要使用陈述语序。故A正确。