For the preparation of class 8 English 1st and 2nd paper, this book 'Advanced Learner's Communicative English Grammar & Composition' by Chowdhury & Hossain is a very popular and effective helper book.
Complete Syllabus: The entire curriculum of English 1st and 2nd paper is presented simply and beautifully.
Easy Grammar Discussion: Every rule of English grammar is explained in simple language with examples, which is very convenient for students to understand.
Model Questions: A sufficient number of model questions and samples are provided for good exam preparation.
Writing Part: There is a good collection of formal letters, applications, paragraphs, essays, and stories for writing.