— Look! The girl with long hair is making a snowman. Is she Sandy?— It __________ be her. I’m not sure.
Mr Yao impressed the students his creative ideas and humorous words.
It is time ____ to school.
—How old ____Li Ping and Lucy ? — Sixteen _____old.
—____ boys are there in your class ? —_____ 22 boys.
—How do you spell “pen”? —___________.