0. If you get to school late, the teacher will be cross.
1. We won't go swimming if it rains tomorrow.
2. If Jack doesn't come soon, we will leave without him.
3. Ted will have to be very fit if he wants to join the school football team.
4. Mark won't win unless he practises harder.
5. What will you do if you don't play football tomorrow?
6. If we win the match tomorrow, everyone will be very happy.
7. Will you give me a lift home tonight, if your mum doesn't mind?