I would appreciate it very much If you ……
Wish you a pleasant journey.
You letter came to me this morning.
I have received your letter of July the 20th.
I’m writing to you about the lecture to be given next Monday.
Be getting on well with one’s study
put one’s heart into…
He has the best record in school.
Take the essence and discard the dregs.
be poor at.../be weak in...
improve oneself in...
get on well with sb.
try to teach sb. good study habits
like to be with students
try to teach sb good study habits
make one’s lessons lively and interesting; teach sb. sth.