【高频口语词】
Used to... 过去总是……
1. I used to live in London. 
我曾经在伦敦居住过。
2. He used to burn the midnight oil before exam.
他过去考试前总要挑灯夜战。
3. We used to listen to the radio every evening when we were little.
我们小时候每天傍晚都听收音机。

【实用情景对话】
A: Harry was angry last night.
哈利昨天晚上发火了。
B: That's because he's getting nervous. Anyway, this is the first time he's directed a play.
那是因为他太紧张了。不管怎么说，这是他第一次导演一出戏。
A: But he used to be very relaxed and cheerful. It's not like Harry to do a thing like that.
但是他过去一向很轻松愉快的，那样的事可不像是哈利做的。
B: Yes, you're right. Maybe there's any other reason.
对，你说得对。或许他还有别的什么原因。