You must obey the rules. (Passive)

  1. The rules must be obeyed by you.
  2. The rules must obeyed by you.
  3. The rules must have been obeyed by you.
  4. The rules must be obey by you.
Answer

A) The rules must be obeyed by you.

Modal + be + V3. Active & Passive Voice · Voice with modals & imperatives

English MCQ · More English: Active & Passive Voice MCQs · Practise