根据句意,在答题卡对应题号的横线上,写出括号内所给单词的适当形式。
Teenagers are interested in stories of the ________________ (牛仔) in the western films.
We all hope the 31st Olympic Games will be _______________ (成功) held in Rio.
It is_______________ (愚蠢的) of you to sit there than to go outside to play games.
The film _ (以…为基础) on the novel Harry Potter is very wonderful.