—______is the Changjiang river in China, do you know?—Yes, it’s about 6,380 kilometers long.
—_____ is it today? —It’s Tuesday.
—It’s time _____ lunch. —OK. Let’s _____.
I don’t like living in the cities, because the cost of living is _______.
—_____ do you go to the zoo with your brother? —Three times a month.
My brother usually _____ his classroom after school. But now he _____ basketball.