—Was he still there when you were away to answer the phone?—There is no doubt about it, but he ________ soon afterwards.

—Have you ________ him to keep good hours?  —Yes, I have. But he doesn’t listen to me.

Scientists have many theories about how the universe ___ into being.

Tom _______ the TV set for $500，which was much cheaper than he had expected．

This is not a typical summer camp, but Michelle is glad she _______ it.