匹配题：下面句子分别出自哪一段，只填表示段落的阿拉伯数字。1. Most travel is not compulsory and definitely of your own choice. Para._____2. It is strange and funny that we tend to solve the most difficult problems when we are relaxing in a luxurious Left Bank café.Para._____3. It is annoying to endure and tolerate the problems and difficulties bought by the modernity. Para._____4. Even in this digital age, meeting other business people and shaking hands with them is still important.Para._____5. Going through all kinds of trouble, I eventually arrived at the airport, only to find my flight was canceled. Para._____6. When we get home from travel, something has changed in our mind and his kind of change will change everything in our future life.Para._____7. It is not mere distance but difference that spurs our creativity and mental flexibility.Para._____8. According to research, experiencing foreign culture make us become more open-minded and conscious of the diverse meanings of a small thing.Para._____9. Travelers with rich experience are open to different views and are willing to accept different ways of interpreting the world.Para._____10. Even in the globalized age, we can still derive from travel a lot which don’t exist both in the Let's Go guidebook and the place you live in.Para._____