Hello, which version of the second grade examination paper do you recommend to buy? Huanggang series: This set is required by the school teacher to be uniformly equipped as daily work. This set of Chinese exercises includes exercise books, standard paper, synchronous composition, happy reading, winter and summer homework, detailed explanation of Chinese and so on. Mathematics includes exercise books, standard paper, daily practice of oral calculation, daily practice of solving problems, basic mathematics and homework in winter and summer vacation. In addition, these two subjects also have special exercises such as "full mark sprint" and "practicing new words", which cover almost all aspects of knowledge.