Choose the correct passive voice: "We should complete this report by tonight."
- A. This report should completed by tonight.
- B. This report should have been completed by tonight.
- C. This report should be completed by tonight. ✓
- D. This report should be complete by tonight.
Correct answer
C. This report should be completed by tonight.
Explanation
Modal verbs form the passive as 'should be + past participle': 'should be completed'.