---Are you _________ of the dark? ---Yes, so I always go to sleep with my bedroom lights __________ .

—Can you come on Monday or Tuesday?—I 'm afraid ________ day is possible.

---How can I improve my reading?---I think the most important is to ______ a good habit of reading.

Be quick, __________ you’ll be late for school.

— Who is Mr. Smith? — He is _______ English teacher.