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.

粘胶制扁条(宽2厘米)