云南的朋友要来宁夏中卫看沙漠骑骆驼，最好选择几月？（　　）

用所给单词的适当形式填空

①He was one of the best____ in yesterday’s football match.(play)

②More and more____ have come to visit China over these years.(foreign)

③She hoped that her son would become a____.(music)

④The teacher was pleased with her____.(honest)

⑤The mother didn’t know why her daughter was crying____.(noise)

计算 $(-3\frac{1}{4})+(-2\frac{3}{4})$ +10÷2.5