Fill in the blanks with 10 questions and read each part. Generally, there are two ways to fill in the blanks, five choices 1, four ways, four ways, and six choices (agree to fill in the blanks).

The reading may be 1 long 2 short. Read 4 long articles, 3 short articles 1 article, 1 article 1 article, and 2 logical questions.

It may also be short 4, that is, the number of questions is 3, 2, 2, 2. Add 1 logic questions.

I haven't done the math. . . 20 questions to 30min minutes, don't care too much about any problems.

Adaptive difficulty means that the difficulty of the last lesson depends on what you did before. If you do well in the front, it will be difficult below.

You should go to pp by yourself, then you will understand.