The play (based/is based) on historical facts. They (told/were told) to wait. The report (followed/was followed) a discussion.

The play is based on historical facts. They were told to wait. The report was followed by a discussion.

Сравните:

based - основал; is based - основан; they told - они сказали; they were told - им сказали; it followed - это последовало за; it was followed - за этим последовало.