______black—headed gulls(红嘴鸥) come to Kunming to spend their winter every year.
Lucy is a(n) ______ girl and she doesn’t like talking much.
– There’s somebody at the door. Who ____ it be? Is it the postman?-- No. It ______ be him. It’s just seven o’clock. It’s too early.
Who is ___________ man under the tree?
I on my way here and had to ask the police for help.
—Do you want to play basketball after school, Jack?— . I have to practice my English.