Answer :
The answer is report. The law requires that we report any suspicious activity to the police.
Hope it helps:)
Answer: report
Explanation: The subjunctive verb mood expresses situations that are hypothetical (an uncertain or supposed event) or full of possibilities. The form of the verb used in this sentence is a little different than normal. To form the verb in the subjunctive mood, think of the present tense, singular form of the verb, "reports." Then, drop the "g" to make the verb "report." "Report" is the correct form of the verb mood for this subjunctive sentence.