The Yellow River is one of ________________in the world.
We _____ more than 1,200 English words already, do you know?
I went to Sanya with my family this summer and all of us _____ a good trip.
—Which subject is _____, Chinese or maths?—I think maths is.
—_____were you born, Peter?—I was born in 1998.
If you have _____ questions, please put up your hands.