I usually spend 35-40 minutes to solve the previous choices and fill in the blanks. Choosing and filling in the blanks in junior high school is relatively simple and not difficult.

The last two questions are often difficult finale questions. It is recommended to spend 40-50 minutes. If you still can't solve it, then give up. Check the questions you have done before, make sure that you don't lose points in simplicity, and try to get points for difficult problems.