Select the option that expresses the given sentence in active voice:
The report should be submitted by the interns before 5 PM.

The original sentence is in passive voice: “should be submitted by the interns”.

To change it to active voice, we bring the doer (the interns) to the subject position and use the modal verb with the base form of the verb:

“The interns should submit the report...”Option 1: “should be submitting” suggests an ongoing action, not a simple instruction.

Option 2: “should have submitted” changes the tense and meaning.

Option 3: Is grammatically incorrect and nonsensical.

So, the best active form is: "The interns should submit the report before 5 PM."