被 can mark a passive sentence.
Introductory pattern#
Affected thing + 被 + agent + action
Worked teaching example#
我的帽子被风吹走了。
My hat was blown away by the wind.
Practise the distinction#
Identify the affected thing, the agent, and the action.
The example and exercise are newly written for this lesson. They do not report an event, interview or study. This introduction covers the displayed use, rather than all constructions involving the same words.
Reference#
Grammar reference. The reference supports the grammar point; no example sentence has been copied from it.