Currently, my English skills are B1 level(pre-intermediate) I need to upgrade from B1 to B1 in next two months.
Could you tell me what the best method for me is now? What books, video, the document I should use? What is the way for me?
Actually, I learn at home by myself.
These videos and resources may be of help.
Examples of tests
practise for reading, writing, and listening at B2