I'm going to visit relatives in America at the end of this month. I heard that you have to fill in white cards and other information on the plane. Do you have any samples?

Don't worry about this, it's all minor problems. First of all, if you take a flight of China Airlines and the flight attendants are all from China, you can solve anything you don't understand. Secondly, if you are flying on American Airlines, don't worry. According to personal experience, American airlines usually have a flight attendant from China. If you don't understand anything, she will help you solve it. Finally, even if the worst happens, the passengers next to you should be willing to help. Generally, there will be at least half of China people on such flights. In addition, I remember that the white card seems to be bilingual. You can rest assured. And most people don't have a copy of this white card, because half of it has been taken away by the US Customs, and the other half has been nailed to the passport, and this half will be handed in when returning to China.