Choose the correct form of the verb in the passive. The security system ____ into by hackers.

Explanation:

• The sentence is in the passive voice and describes a completed action in the past.
• "The security system" is singular, so we need a singular verb form.
• "Have been broken" is plural.
• "Is broken" is present tense.
• "Will be broken" is future tense.
• "Was broken" is the correct past tense, singular passive form.

Answer (EN)

• The security system was broken into by hackers.

Перевод (RU)

• Система безопасности была взломана хакерами.