根据下列句子的意思，用括号中所给词的正确形式填空，每空限填一词。
1. It's ________ ( possible) to master English if you don't have enough practice.
2. The lecture was so ________ (bore) that some people fell asleep while listening.
3. Nothing can prevent us from ________ ( realize) our dreams.
4. Many foreigners enjoy Chinese fashion, ________ ( especial) the Tang costume.
5. No one can ________ ( success) without any hard work.
6. Though he has grown up，he isn’t brave e________ to go out alone at night.
7. The living conditions in the countryside have ________ (改善)a lot.
8. The children didn't go to bed u________ their mother came back.
9. Now parents are ________ (花费)more and more money on their children's education.
10. Most people think bicycles are much safer than other v________ .