-Mommy, can I go for a walk this Sunday? -hmm.. with whom? -oh there are will be many people. I and my classmates want to spend more time together and we decided to go to the cinema. -why don't you invite your classmates to our home. I think grandma will be so glad -there are will be soooo many people. it's about 40 people. -yeah, you are right. well, I don't mind. but I should make sure you will be safe. -of course mom. I'll take the phone and will call you every 30 min