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

 In today’s fast changing and competitive world, to be able to learn faster and more effectively is not merely desirable; it is ________.

The shop-assistant was straight with his customers. If an article was of _____ quality, he'd tell them so.

We have dresses of various styles and patterns on sale and you may take ______ suits you best．

This dress is prettier, but it costs ______ that one.