It has been reported that some government leaders ________their authority and position to get illegal profits for themselves.

We met an old friend in New York ____ ourexpectation.She waved at us ____ the street when she saw us.

Is that book so boring—- ______________. You can know a lot about birds.

When we arrived in the middle of the night，there was nofood as all theshops were shut.

The girl devoted all her time she had _____ poorchildren.