Пожалуйста помогите преобразовать активные предложения в пассивные)

1.       The president is called every day. 2.       The agreement is going to be signed next week. 3.       The US constitution has been amended 26 times since 1789. 4.       Considerable damage was caused by the fire. 5.       New York is often called the “Melting pot”. More than 80 languages are spoken in New York. 6.       She wasn’t invited to the party. 7.       We might be taken to the airport in his car. 8.       Were you disturbed at night?