阅读理解。 Do people in your country hug and kiss on the street? In some countries, it is common for people to show affection (喜爱) in public places. In the United States, for example, we often see couples hold hands, hug or kiss on the street, in the park, in restaurants, and even on trains and buses! However, in some other countries, people never show affection in public places because their customs don't allow this. For example, in China and Korea, custom doesn't allow people to do so in public. So, when Chinese and Korean people visit the United States, they often feel very surprised and shocked when they see Americans hug and kiss on the street. In some countries friends show physical affection to each other. In some South American countries, female (女性) friends walk arm in arm when they walk along the street together. In Italy and Russia, male friends often kiss each other on both cheeks when they greet. In most countries, men don't kiss or hug when they greet another. They usually shake hands or pat each other on the back. People around the world are different in amount, manner, and situations in which they touch each other. 1. How do Korean people feel when they see people kiss and hug on the street? A. Worried and sad. B. Happy and interested. C. Relaxed and enjoyable. D. Surprised and shocked. 2. What's the Chinese meaning of  'hug' in the passage? A. 拥抱 B. 摔跤 C. 嬉戏 D. 鞠躬 3. According to the passage, which of the following is NOT true? A. Social customs are different in different countries. B. Customs in the United States allow public affection. C. Women in South America never touch each other. D. People around the world are different in some ways in which they touch each other. 4. From the passage we can know that ________. A. it is not polite to hug and kiss in public B. male friends in Russia often kiss each other on both cheeks C. Chinese and Korean people don't hug and kiss each other D. all Americans like to kiss 5. The main idea of this passage is that _________. A. Chinese people are quite different from American people B. Koreans and Americans can never understand each other C. different culture allows different ways to show affection D. people in some countries are more affectionate than those in some other countries