Why were you late for the class, Jenny— Oh, my clock must be running slow, and it needs____.

People under stress ______ express their full range of potential.[ ]

There was a big crowd waiting _____ the opening ceremony to start.

eople complained about the stoneslying on a road, but _______ did anything about getting the stones out of theway.

After a long walk from the lake to the school, most of the students went back to the classroom, __________.