-Excuse me, does Mr Smith’s son live here?-He _________ be here, but he has moved.
_______, Coca-Cola began to enter China’s market.
______black—headed gulls(红嘴鸥) come to Kunming to spend their winter every year.
Helen is my friend. She is in ______ at Beijing No.11Middle School.
---Look at that tall building! ---It is _______tallest building in the city.
Tomorrow is my father's____birthday.I will buy him a gift.