2 Find and correct the mistakes in these sentences.
1 I've always been interested on science and I want to study biology at university. 2 As soon as the sun went out, the moon became very bright.
3 My brother isn't very keen of doing sport, but he loves watching it!
4 My mum was born in a small town, but she grew in London.
5 Some people are really afraid to snakes.
6 I don't know if I'll go swimming. It depends of what my friends want to do.​