________ every student aware of the importance of study, they would study efficiently.

---I didn’t go to the party yesterday because my car broke down.  ---You ______ mine. I wasn’t using it.

—I wish I _________ the meeting.—But you didn’t .

If I _______ it, I would do it in a different way.

—What’s his monthly income?—Well, he ________ earn as ________ as 4,000 dollars a month when his business runs well.