Which of these were included in the stage setup in both public and private elizabethan theatres

The only inner stage was included in the stage set up in both public and private Elizabethan theatres.

Explanation:

From all the great differences that existed in public and private Elizabethan theaters, only a few remained in both. The stage, sits, and also included in this case: inner state. The reason behind this was because actors had to have one to carry out the clothing changes the play required. Even the most modest theaters had one because they also worked as a waiting room for them.

idk

explanation:

answer: do

the 'italicized phrase' is a noun clause that is used as a direct object.