问题
选择题
—Did you hear about the terrible accident ?
—Yes, but I don’t know _________.
A．where was it happened
B．where it was happened
C．where did it happen
D．where it happened
答案
答案：D
本题考查的是特殊疑问句作宾语从句的情况，要用陈述句语序，故选D