Hmm? Is there any topic information in volume two? Our paper is a full set of questions and a full set of answers. There is no information in the two volumes except the answer line and blank answer area. As for a volume, you can do whatever you want, can't you? As for underlining, I remember to cross it out with double horizontal lines if I made a mistake. Otherwise, it will leave a bad impression on the teacher and even be understood as marking papers. So strict, convincing.

We do have subjective questions, but the questions are on one piece of paper and written on another. There is nothing wrong with the written test paper. But some big questions have pictures, so it's best not to write anything except the auxiliary lines marked.