Had I known about this computer program, a huge amount of time and energy _____. [ ]

He used ________ on the right in China, but he soonwas used ________ on the left in England.

The floor is wet. Who’s going to___________

He would not mind extra work for the student’s union because he has all the good .

The army is a hard place, but Jack is _____ to be a soldier. [ ]