It doesn't matter whether the test paper is written or not.

But it's best to write an answer sheet, and the teacher usually only writes the test number for you.

But a test number is enough.

When scoring, score in order. As long as your supervisor writes the examination room number correctly, the score is actually next to the score, because it was not opened when you graded it. (exams are always like this, and I don't know how the college entrance examination is. It should be the same. It doesn't matter whether your teacher arranges the test papers in the correct order. It's okay. Don't worry.