英语作文求助信 5分

dear mr. johnson,
how are you doing these days? it’s almost two months since we met each other last time. i miss you a lot.
thank you so much for your help with my english study. now i am faced with some new learning problems. i have some difficulty in comprehensive reading. my english teacher often says that only if we expand the reading quantity can we be admitted into a better university. but, i feel it difficult to understand english passages with the increase of vocabulary / for lack of vocabulary. besides, i often feel nervous while reading english. all of the problems bring me great pressure. i am unable to remember words well and feel tired of learning english.
i really hope that you can give me some good advice on how to memorize new words and practice reading english. i believe i can make great progress in english with your help.
i would be grateful/thankful if you could give me some advice/help. (by the way, please come to china for a visit whenever it is convenient to you. i am looking forward to seeing you again.)
best wishes!
yours sincerely, li hua