By then I had decided upon my course of action.
Still he had not decided upon his next course of action.
Truth was he had already decided upon a course of action.
By the time the men began their charge, she had already decided upon her course of action.
After a few moments she decided upon a course of action.
They had to decide upon their next course of action after the project fell through.
After a moment's reflection, however, he decided upon a fresh course of action.
Instead, I have come here to congratulate you upon your course.
How easy it is to go from bad to worse, when once we have started upon a downward course!
I felt how urgent it was that we should decide soon upon our course.