1 . Seeing the children playing happily, he stopped and watched with ______(愉快). （根据汉语提示单词拼写）

2 . His expression changed from surprise to one of ________ (amuse). （所给词的适当形式填空）

3 . To our great ____________(amuse), the teacher sang a funny song during class. (所给词的适当形式填空)

4 . As the translation was funnily wrong, it caused a lot of a________ for people who speak both languages. (根据首字母单词拼写)

5 . Dieting and exercising can bring your weight under control but you must stick to your plan with ________.

A．perseverance

B．interaction

C．appreciation

D．amusement

6 . ________ (让我感到非常可笑的是), they both fell into the river while riding a bicycle. (根据汉语提示完成句子）