Dan caught two ________birds in the wood last week and they are still ________in the cage.

A good story does not necessarily have to have a happy ending, but the reader must not be left        .

For fear of unemployment, almost one million people sat （参加考试）China civil service examination in order to get  ________jobs.

It was several minutes before I was    what was happening.

Girls used to take fewer advanced math courses than boys but now they are taking just          .