Помогите с пассивной формой

Ответ:1. has been

2.will be

3.have already been

4.is

5.has already been

1.were taken

2.is cooked

3.have been opened

4.are taken

1.The phone was invented by A. Graham

2.All his money has been stolen by someone

3.Our car will be fixed by mechanic

4.Emails are checked by Mr Parker every day

Объяснение: