.. .20 vấn đề ngữ pháp đề cập sách bao gồm: Nouns; Articles: a, an, the; Pronouns and Possessive Adjectives; Verb Tense; Problems with Verb Tenses Subject - Verb Agreement; Prepositions; Word Forms;... Sentence: Variety, Fragments; 18 Run-ons and Comma Splices; 19 Confusing Words and Structures tổng hợp 20 Parallel Structures