Rewrite the sentences starting with the words given 1. The car isn't cheap, so I won't buy it.
If the car were
2. I'll take the bus to the city centre if my mum isn't willing to drive me there.
Unless
3. Leave early because you may get stuck in traffic.
You may get stuck in traffic if
4. Kevin doesn't behave well, so his parents won't take him to the restaurant with them.
If Kevin