Fill in the blank with the correct form of verbs in the brackets, using conditional type 0.If someone( enter) the building, the alarm_(go off)

Fill in the blank with the correct form of verbs in the brackets, using conditional type 0.

If someone____( enter) the building, the alarm_____(go off)

Fill in the blank with the correct form of verbs in the brackets, using conditional type 0.If someone____( enter) the building, the alarm_____(go off)