
One possible version:
Dear Mrs.Johnson,
I'm writing to invite you to go to the theater with me to see a drama play this coming Saturday.I believe it'sa good chance for a drama addict like you.
The famous play Teahouse by famous Chinese writer Lao She vividly describes the rise and fall of ateahouse.The play is due to be performed in the People's Art Theater in our city and it will begin at 7 pm.If youare to join me,will you please meet me at the theater gate at 6 pm?
I would appreciate it if you could accept my invitation.I'm sure it will leave a wonderful impression on you.
Yours sincerely
Li Hua