1.  

I ____ John yesterday.

2.  

When the police _______, the criminals had already left the scene of the crime.

crime: έγκλημα,
scene of the crime: τόπος του εγκλήματος,
criminal: εγκληματίας.

3.  

The flight from Frankfurt _____ at the airport at 7 o’clock sharp.

4.  

Greece ____________ a member of NATO when she joined the EU in 1981.

5.  

She ___________ for 10 years for this company when she submitted her resignation.