Don't worry, the landlord filled it out in English. But there should be a waiter from China, if the flight is from depart, China. In addition, if you just transfer to Korea and don't need to go through the customs formalities, you may at most check again to see if there is any liquid substance before boarding the plane! You must fill in the entry form when you enter the United States. If you are a student visa, you must naturally fill in a white form, which probably contains your name, address and visa status. ANother customs form is about what you have brought, whether there are contraband, etc. Of course, you have no, how much cash you have brought, etc. Don't write too much, just write the cash equivalent of 5 dollars, because everything else can be proved by credit card. Don't be nervous about anything, just fill in the things step by step. If your English is not very good, don't worry. Just bring a translator to make sure that your information is correct. The most important thing is to smile and answer in a friendly way. If you are wrong, don't be nervous. Remember: smile, say sorry with confidence, accidentally read it wrong, and don't be nervous, but it will be troublesome. If you have any questions, please feel free to ask. If there is no problem, I hope I can help you!

Finally, I wish the landlord luck! Good luck! : )