We'd have gotten away with it all term if another class hadn't used our room.

That first class used the building for four years as it was being completed.

It will take a few years, maybe even decades, to see how this new class uses its money.

I have sometimes used kits that an entire class could use.

It is big enough that two classes can use the library each period.

The second class uses a camera to image the beam.

The class then use the method to draw their own circles.

Some classes use an 80 minute block format and meet every other day.

This country's poor and working class could use a friend in the White House.

Gentlemen bore arms; only the lower classes used their hands.