Use the idioms below in the correct form to complete the sentences.

1. Sarah and Nicole work really well together, and enjoy each other's company; they ... .

2. Whenever we go to the countryside we always stay at the same hotel; it is ... .

3. Now that the most difficult part of the project is over, we are ... .

4. Don't worry, the mechanic has done a good job repairing your car; it is ... .