I'm preparing a presentation for my Mandarin class. The idea is to stage a situation. Basically the point is to create a situation which begins with a Chinese person asking for two foreigners to take a picture for him. Since the situation is to happen in China, this seems very unrealistic, so I decided to start the stage with the Chinese person talking to himself:
I'd like to take a picture of me and my family, but there is no one around except those two foreigners. I will ask them.
How do I say that in Mandarin?