根据句意及首字母或汉语提示完成单词，使句子正确、句意通顺。将答案写在题后相应的横线上。
1．There are some clouds in the s ．
2．Today many families in China can a to buy a car．
3．There are five people in the classroom, i the English teacher．
4．At first the boy was a to speak in public．
5．Taiwan b to China for ever．
6．We should often exercise if we want to stay (健康的)．
7．Our English teacher often gives US some (建议)．
8．He didn't use (打) volleyball．
9． (幸运的是), I passed the exam．
10．I was (吃惊的) to learn that Li Yang would come to our school to give us a lecture．
1．sky 2．afford 3．including 4．afraid 5．belongs
6．healthy 7．advice 8．to play 9．Luckily l0．surprised