翻译以下短语并完成句子。
1. compete with/against_____
2. compete in sth._____
3. compete for___
4. be in competition with____
5. He is hoping to____the Olympic Games in London in 2012.
他期盼着参加伦敦2012年奥运会.
6. Young children will usually ____ their mothers' attention.
小孩子们往往会在妈妈面前争宠.
7. We can ____ the best teams.
我们能与最好的 队竞争.