Read it through once

FRANCISCA. It is a man’s voice. Gentle Isabella, Turn you the key, and know his business of him; You may, I may not; you are yet unsworn. When you have vowed, you must not speak with men But in the presence of the prioress; Then, if you speak, you must not show your face; Or if you show your face, you must not speak. He calls again. I pray you answer him.