Упр.1b Модуль 4c ГДЗ Spotlight 11 класс

b Which word do we use to introduce the agent? (i.e. the person/thing that performed the action) When do we omit it? Find examples in the text.

Agent is introduced with by.

We omit the agent when it is not important, unknown, or obvious from the context.

Examples from the text:

• was built by …
• was made by …
• was discovered by …