—Mom, where is my schoolbag? —______. Is it under the bed?
Have you ever read books ______ by Lu Xun?
—It’s too late. I have to go now. —Oh, it’s raining outside. Don’t leave ______ it stops.
—Thank you for the nice birthday present. —______ .
There are ______ floors in the building and my home is on the ______ floor.
— Do you know anything about Chinese knots (中国结)? — Yes. They are usually regarded ______symbols of good luck.