Who do you _____ the newspaper send to cover the bank robbery?

The government has made a promise that further measures will be taken to rid the street _____crime[ ]

Instead of settling down and living a peaceful life, the farmers move from city to city _____ work.

Robert is interested in ________ astronomy and he wishes he could make a trip into ________ space one day.

In order to have more tourists to Yunnan, we need to come up with more ideas.