1.your name/Colin/Lily
2.Can't talk with him by telephone. I leave home right now and will be back very late due to my aunt's birthday.
3.lessons for tomorrow were abolished.In that case our class will have a picnic in the country.
4.Every student should wear sports clothes.
5.everybody should take food and drink for itself.
6.that's a great idea!He won't be hungry then.
7. Not at all, good bye.