Tour groups report for group tours, usually staying in standard rooms. Can I choose a single room? What should I do?

Accurate and complete answer: On the premise of signing up for a tour group, you can ask the tour agency to check in on its own. You can stay in a hotel with a big bed room during the trip, or you can stay in a standard room alone without a big bed room. The premise of this kind of treatment is that you pay for two people yourself (the prices of big bed rooms and standard rooms in most hotels are not much different). If you don't want to make up the room difference, answer accurately: there is no other way.