Question

---Do you know___________ in Ya’an?      --- On the 20^th of April，2013.

A．how many people died in the earthquake	B．how many days the earthquake lasted
C．when the earthquake happened	D．when did the people die

Answer 1

C

试题分析：句意：你知道雅安地震是什么时候发生的吗？2013年4月20日。答语是时间，应该选择由when 引导的宾语从句，要用陈述语气。故选C。