They will stay with me at my home address listed above, and I assume full responsibility for them and their well being and otherwise, for the duration of their stay. I will pick them up and return them to our local airport directly, and ensure all flight plans are in good order. They are promising students in Thailand, and all of the girls' family reside there. They have no motivation to overstay or violate the terms of a visa in any way. During the trip, they will enjoy tours of attractions in the area, practicing their Chinese language skills, visiting me, celebrating my graduation, shopping and Chinese food. I feel this will be a wonderful chance to show them how wonderful of China.
I look forward to this visit very much, and I'm sure you will find them to be great candidates for a visitor's visa.