—I’d like to book a room for tonight.—Sorry, sir, but we don’t have any rooms _________ right now. 

Unlike many other boys of his age who are often addicted to PC games, he is _______ on outdoor activities in the mountains.

After a day’s walk in the desert, the explorers reached the camp, _______.

Children ______ to difficult situations are better at handling those _____ tasks.

 The building is _____.