I'm interested in a one-bed room． Do you have any _____?

 Polar explorers have to be extremely _____ to bear the climate and other hardships. 

— Are you content with Ang Lee's new film Life of Pi?— Not a little. It couldn't be ________.

There is nothing wrong with using a credit card for purchases. It’s more _______ than carrying loads of cash.

For our middle school students, some courses are compulsory, while others are ________.