IT departments ___ (use) to manually process data before automation tools were integrated into information systems. 

Companies ___ (use) to rely on paper-based information systems before digital systems became widely available.

For the past month, the team ____ (monitor) the network for unusual activity. 

Data analysts often ____ (compare) information from different databases. 

Before upgrading, they ____ (not/use) such an advanced database management system. 

Last month, our network ____ (crash) due to an unexpected server error. 

Since the beginning of this year, the team ____ (work) on improving our database security. 

Recently, I ____ (learn) how to secure our data storage effectively.

She ____ (analyze) data all day yesterday to prepare for the meeting. 

Network engineers ___ (use) configure routers and switches manually, which took a lot of time compared to modern automated systems.