1.You should brush your teeth after each meal.
2.We can't leave unless the chairman has finished his speech.
3.You need to check in before you get on the plane.
4.If I leave my work early,I will be able to do my shopping.
5.Until it stops raining,we can't play football.
6.You can go out with your friends when you have cleaned your room.
7.I will call the babysitter as soon as I get home from work.
8.You should always have a spare tyre in your car in case you have a puncture.
