1
The passive is formed with the verb "be" and the .... of the main verb.
2
Verbs in sentences can be active or ...
3
Our ofices are ... in the evening. (clean)
4
In the ... voice, the subject appears first, the verb second, and the object last.
5
This place ... in the 19th century. (build)
6
In the ... voice, the subject is performing an action.
7
The new computers ... last week. (install - past)
8
The meeting ... yesterday. (hold-past)
9
The ... voice sounds more natural if the actor of a sentence is unknown.
10
The photocopier is ... once a week. (service)
