【推荐1】When I am d______________, I prefer listening to some light music to cheer me up.

【推荐2】David felt d________ because he didn’t pass the math exam.

【推荐3】It takes only half an hour to go(下去) ____________ from the top of the hill.

【推荐1】根据所给解释或者说首字母提示，用合适的单词填空。
1. I can’t __________（put something into different groups）my work from life. It has become part of my life.
2. We don’t __________（let someone do something）students to use mobile phones at school.
3. Our group often go to the restaurants to __________（treat something used so that it can be used again）empty beer and coke cans.
4. The police will    f_________ you if you park your car on the wrong side.
5. More and more foreigners are interested in the long history and r_________ culture of China.

【推荐2】French people are supposed to _________ (打招呼) each other with a kiss when they meet.

【推荐3】If you want to succeed, you have to ________ (坚持) it and not give up.