青蒿素是什么药:how do people behave when they are in love?

how do people behave when they are in love? How do people make use of animals? How do you deal with people who waste time? How do people usually _______ in the office? 翻译 When you are in charge,how do you motivate people? 高手请进:do you know how many people are learing english in china some people waiting you !and you?what do you think? how long? In big parties,how do people get to know each other? How do you do? How do you do ?