There's a way.

My children's school has been closed because of an epidemic disease, the swine flu. I had an impression that the disease was under control here in Japan, but it seemed to be wrong. According to the school, some students have developed its symptoms. We were very surprised to hear the unexpected news! Luckily for my children, they are vigorous, but they aren't allowed to go out without a specific reason. They have been grumbling at me about the restriction, but I couldn't do anything for it! They should know that I want them to go to school!