As the monitor, I am writing to invite you to join us.

Here is a brief schedule. We are to meet at the school gate at 8 o’clock this Saturday morning. Since we’ll cycle there and work in the field, you’d better wear casual clothes and comfortable shoes. It would be better if you could bring some necessary tools. Besides, we’ll have a picnic after the work is done. Everyone is expected to bring their lunch and share it. We may return at around 3 o’clock in the afternoon.

I sincerely hope that you can accept our invitation and I am sure that we students would be extremely happy to see you. I am looking forward to your reply.

Yours, Li Hua