最經(jīng)典的句子：
1. What happened?
出什么事了
2. It happens.
這是常有的事。
【瘋狂語錄】這個(gè)句子用在當(dāng)發(fā)生了沒有預(yù)料到的事情，勸說別人想開點(diǎn)兒的情況。
3. The accident happened outside my house.
這個(gè)事故發(fā)生在我家房子的外面。
4. What will happen to the children if Peter and Alice break up?
如果彼得和愛麗絲離婚孩子們將怎么辦?
5. It happened quite by chance.
此事純屬偶然。
6. A funny thing happened in the subway yesterday.
昨天地鐵里發(fā)生了一件有趣的事。
7. A bad accident happened to that family.
那個(gè)家庭發(fā)生了不幸的事情。【下次見面請(qǐng)賣弄給我聽！】
8. Did you hear what happened to David last night?
你聽說大衛(wèi)昨天晚上發(fā)生什么事了嗎?

親愛的朋友們，happen還有一個(gè)極其重要的意思就是“碰巧”，與to連用。
9. Do you happen to know his new telephone number?
你可知道他的新電話號(hào)碼?
10. I happened to be in the market yesterday when a fire started.
昨天發(fā)生火災(zāi)時(shí)，我正好在市場上。
11.I happened to see Peter on the way to the bookstore yesterday.
昨天我去書店的路上碰巧遇見了彼得。
3. sad

adj. 憂愁的；悲哀的