3. Complete the sentences. Use about, at, in or of. 0) Fred is good ___ tennis. He's the school champion. 1) She's excited ___ her birthday party on Friday. 2) I can't play chess. I'm bad ___ it. 3) They're interested ___ history and science. 4) Why are you scared ___ snakes? 5) I'm worried ___ you. What's the matter?

1. Fred is good at tennis. He's the school champion.
2. She's excited about her birthday party on Friday.
3. I can't play chess. I'm bad at it.
4. They're interested in history and science.
5. Why are you scared of snakes?
6. I'm worried about you. What's the matter?

Перевод предлогов по контексту: at — в/по отношению к навыку; about — насчёт, по поводу; in — в, интересоваться чем-либо; of — чего-либо.