—He looks very happy. He ____have passed the exam, —I guess so. It’s not difficult after all.

If it _________ not for all the cars and passers-by with cameras, you _________ think you have magically traveled back to the 14 century.

—May I tell this to my close friend?—No, you      . Never let anybody else know about it.

If we    a table earlier, we couldn’t be standing here in a queue.

You would have helped your mother do some housework. But you_______.