It may be 5 or 10 years __________ it is possible forpeople to find a space station on the moon.

It was after he got what he had desired he realized it was not so important. [ ]

Important people don’t often have much free time as their work ________ all their time.

Without the slightest doubt, the new method is________the old one. [ ]

— Peter, would you like a beer to go with your meal?— Sure, it________.[ ]