A:hey,jhon,you look worried.what's wrong?
B:i failed my engkish exam again.i think english is the most difficult subject in the world.
A:oh come on!jhon
B:your english is good.can you help me?
A:yes ,of course i can.
B:please tell me something.
A:first,you should keep as many english words as you can in your mind.second,you should read english every morning,third,you should often practise it often.
B:got it.thank you.i will try my best .