There’s growing unrest among the poor and unemployed. The media points out that it’s the government that should have a lot to ________.

It isdangerous to allow the children who are ________ swimming in the river.

The last bus _________ two minutes before I arrived at the bus stop. What a pity!

We had no choices _____________ home, for the last bus went before we arrived.

“Take a look at these pictures, and see if you can _____ the criminal． ” The policeman said to the witness．