Dear paul,
Thanks for inventing me to attend the Cultural exchange activities at next weekends to introduce Chinese Traditional Painting.I would really like to,but my grandpa was sick and I have to take good care of them at weekends.I am very sorry about it.I think Anna can take the place of mine to introduce the Chinese Traditional Painting.I will give her your email address and you can tell her something important and interesting about the activity.I wish you have a nice day.
yours,
Lihua.