It's your first time having your nucleic acid done, and you feel so uncomfortable as the paramedics take a cotton swab and poke it deep into your throat, but you just want it to be over quickly. Getting the nucleic acid done is easier and faster than you thought. You grab your bag, passport, and the outbreak entry instructions you filled out earlier and head to the front desk of your hotel, where you finally get your room card after a long wait.

One of the men in white led you and dozens of others in the same situation as you into the elevator. You were assigned to different single rooms. The hotel was spartan, and since it was a room specifically provided for the isolation of returnees, there were only the most basic amenities, and any other items had been temporarily removed. You frowned as you put down your bag and looked down at your phone, it had run out of battery and turned itself off. You were glad you had talked to your family about your situation while you were waiting for your nucleic acid and told them not to worry too much. You feel very uncomfortable and want to go wash up, but you realize there is nothing in the hotel, your luggage is still stranded at the airport, and you only have your carry-on bag.

Your phone is dead and you are exhausted from not having any luggage, so you soon fall into bed and fall asleep. You had a long, long dream about how wonderful your life would be in China afterwards, finishing your studies on time and spending time with your family. But is that really the case?

1. Maybe, why?

2. Must be, why?

3. Not at all, why?