根据句意，在横线上写出括号内所给单词的适当形式
Now more people are interested in ______________ (外国的) cultures.
Please read all the ______________ (指示) before you start to work.
The pop star won many______________ (竞赛) before he became a singer.
It’s amazing that these man used ropes to pull ______________(他们自己) up the rocks without getting hurt.