根据句意，写出括号内所给单词的适当形式。
小题1:With the (develop) of China, we can live a better life.
小题2:Our English teacher tries her best to make her students (interest) in her class.
小题3:The more help you give to others, the (happy) you will feel.
小题4:Boys, enjoy (you) at the party. Have a good day!
小题5:More and more people have realized the (important) of saving water.
小题1:development
小题2:interested
小题3:happier
小题4:yourselves
小题5:importance
小题1:考查词性转换。develop的名词形式是development。The development of China“中国的发展”。故填development。
小题2:考查make的用法。make sb+形容词作宾补。interested“感兴趣的”。故填interested。
小题3:考查固定句型。the+比较级，the+比较级...表示“越......，就越......”。故填happier。
小题4:考查固定短语。enjoy oneself“玩的开心”。根据boys可知，应该用复数形式。故填yourselves。
小题5:考查词性转换。the importance of...“......的重要性”。故填importance。