Dialogue between two friends focusing on the problems they face in English writing

Rahim	As-Salaam-Alaikum; how are you, Jamal?
Jamal	Wa-Alaikum-Salaam; I am fine and what about you?
Rahim	I am also fine by the grace [অনুগ্রহ] of Almighty [মহৎ] Allah. But you did not talk to me for many days. I don’t know why.
Jamal	Actually, My English exam will start after a month. So I am very much worried about it. In fact, I am very weak in written English.
Rahim	English is a foreign [বৈদেশিক] language. So, any student may face this problem.
Jamal	How can we face this problem?
Rahim	You know whenever we face any problem, we need a little patience to solve it.
Jamal	I want to discuss the way to solve the problem.
Rahim	English is not our mother tongue. So at first, we are to build up our vocabulary.
Jamal	How can we build up the vocabulary?
Rahim	Word coming is a good system to build up the word stock. It means you will note down the difficult words in a separate copy. After that, consult the dictionary for meaning.
Jamal	Which dictionary is better?
Rahim	Oxford Advanced Learner’s Dictionary of Current English is a useful dictionary.
Jamal	I will purchase it. What more do we need to improve English?
Rahim	For English writing, we have to know structural English as well.
Jamal	What book can we read for this purpose?
Rahim	‘A Practical English Usage’ by Michael Swan is a good English Grammar book. You may consult it.
Jamal	I’ll purchase the book.
Rahim	We must read English regularly and keep writing on some new topics. This is how we can upgrade our creative faculty.
Jamal	Right you are! If we learn vocabulary and grammar properly, they will indeed [নিশ্চয়] help us write any topic correctly.
Rahim	Thanks for sharing.
Jamal	You are most welcome. See you tomorrow.
Rahim	Okay! Bye.