Coca-Cola began to enter China's market ______. And it’s still quite popular now.
My grandma ______ dinner when I got home yesterday.
David enjoys _________ basketball on the playground after school every day.
— Must we get to the theater at 7:00? — No, you _______. The movie begins at 8:00.
Most students think Lady Gaga is one of _________ singers in USA now.
I knocked on the door several times but answered, so I left.