Then finish the half carefully and slowly, do every problem, cut it out if you make a mistake, paste it in a notebook, or copy it down. (It took me 3 weeks)
I've finished, so I won't do the rest. I have read every test paper from beginning to end, and I will think about how to do every question. Some of them are simple. I'll run through what I can do at first sight. I will carefully look at those ideas that I can't think of at once, and then make them. It only takes me 20 minutes to read a test paper at last.