问题
选择题
He didn’t know __________
A．what kind of snake it is
B．what kind of snake is it
C．what kind of snake it was
D．what kind of snake was it
答案
答案：C
题目分析：句意：他不知道它是什么种类的蛇。这是一个含有宾语从句的复合句，宾语从句要注意时态、语序、连接词。要用陈述句语序，排除B、D，主句用的是过去时，故选C。
