If you learn the basics from teacher Tang Jiafeng, you can choose to do 1800 intensive reading articles. If you are with Mr. Wu, you can do 330. The teacher's online handout is intensive reading, and there are many topics on it that can be studied carefully.

Mr. Wu's 660 and 330, Mr. lin li's 880 and 108 can all be tried. Among them, 660 pay attention to the foundation, and the postgraduate entrance examination can be done repeatedly from the foundation. In fact, it is relatively simple for the generation of lines, and there is no need to do it specially. For me, the problem of 880 is better and highly recommended, but the final choice depends on yourself.

If the foundation is solid enough, you can also try to come up with some questions yourself, which can improve more.