Question

Change the voice of the following sentences , mother has switched off the lights.

Answer 1

Answer:

The lights have been switched off by mother.

Explanation:

First we reconstruct the sentence ( object - verb -subject)

Then we change the form of verb to passive (has/have+ p.p. - has/ have +been + p.p.)

"lights" is plural number so we use have verb instead of has ( which is used only in third person singular number).

Then we rewrite the sentence.