Помогите с английским

Определите видовременную форму и залог глагола-сказуемого:
1. After the letter had been finished, it was sent by fax.
2. The package has already been delivered by the carrier.
3. The ordinary share capital of a company is usually referred to as the equity of the company.
4. When I entered the hall the young specialists were being instructed what to do.
5. They have been just told of the results of the talks.