______ twice, the postman refused to deliver our letters unless we chained our dog.

How will you go to the zoo tomorrow —If it ______ tomorrow, I’ll go there by car．

The teacher finds that Jane is quite different from ______ she was like one year ago

Who were those people with the flags—A group ______ itself the Leagueof Peace.

What are you reading about—It’s about the one-child policy. It says that the policy has____controlling the population in China.