The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.

— Must I feed the goldfish now? — No, you ______. But you must do it before supper.

Your school things should _____.

You ______ be hungry already--- you had lunch only two hours ago!

Those who failed to get into the art exhibition ________ disappointed as many of the artists who should have appeared did not come.