Complete these sentences with the correct prepositions. Many people are afraid ... spaider .My frind Ali is really goode

1. Many people are afraid of spiders. 2. My friend Ali is really good at English. But he`s very bad at Maths. 3. I think England is famous for castles and pop music and its language. 4. I`m really interested in nature programmes on TV. 5. My brother is keen on collecting stamps. 6. I`m very proud of improving my English. 7. I`m worried about global warming and the environment.