Write a Letter to Your Friend Advising him How he Can Improve his English
[Friend Full Address],
Your lovely letter is just in hand. You want to know how you can improve your English vocabulary. I am giving some suggestions. You need some kind of vocabulary notebook where you can write down the new words you are learning. You can divide your notebook into different sections, such as words to think about, words to describe places, words to play, etc.
You can also learn words with meanings linked together. When you find antonyms of words, record them in a notebook with some notes. After arranging all these, outline your own sentences. This exercise will help you a lot. Also, you need some dictionaries like English to English and etc for information.