Упр.4a Модуль 7c ГДЗ Spotlight 10 класс

Read the examples. When do we use by/with to introduce the agent? When can we omit the agent?

Othello was written by Shakespeare.

This dish is made with peppers.

The robber was arrested last night (by the police).

By is used to introduce the agent when we say who does the action in the passive voice.

With is used to say what something is made of or what is used to do something.

The agent can be omitted when it is unknown, unimportant, or obvious from the context.

Examples:

• Othello was written by Shakespeare.
• This dish is made with peppers.
• The robber was arrested last night.