Active or passive voice

Choose the version which you think is more effective.

1.

A meeting to discuss the criteria to use in selecting applicants for MA admissions is scheduled for next Monday at 11am.

We’ll meet / Let’s meet next Monday at 11am to discuss selection criteria for MA admissions.

2.

Five copies of this report should be made before tomorrow when it needs to be presented at the meeting of the Board of Examiners tomorrow.

Please make 5 copies of this report before the Board of Examiners meeting tomorrow.

3.

A demonstration of the new software will be given by the Technical Office tomorrow.

The Technical Office will give a demo of the new software tomorrow.

The Technical Office will demonstrate how to use the new software tomorrow.