补充句子（每小题1分，共5分）
Li Lei: Hi, Mike.__________ ________________
Mike: Yes, I did.
Li Lei: ______________________________
Mike: Yes. Many buildings fell down. Over 69 000 people died in it.
Li Lei: ____________________________________
Mike: And I know another two terrible earthquakes in China.
Li Lei: Really? _____________________________________
Mike: I think the Tangshan earthquake in 1976 was the most serious. More than 240 000 people lost their lives.
Li Lei: How terrible! How can we protect ourselves from the earthquake?
Mike:_________________ ________________________

A. Let’s ask Miss Chen for help. B. I’m sorry to hear that. C. Did you watch the news about Wenchuan earthquake? D. Was it serious? E. Which was the most serious?