Thousands of years ago people discovered the phenomenon by chance, and this was _____ the idea of the compass first came from

__ he still paused uncertain, hebecame aware that the driver was looking closely in from the street at thisunusual scene.

You can’t get___________with being late every morning

Tom， youplay football in the street. —Sorry， I do it again.

the time of great trouble, thesoldiers _______ their spirits by singing