The materials cover sentence structure and types, different tenses, passive voice, nouns, articles, comparison, participles, verbal nouns, pronouns, infinitives, inversion and a lot more.

• 内容有句子的结构及其种类、不同的时态、被动、名词、冠词、比较、分词、动名词、代名词、不定词、倒装，以及其他文法。