______________ is an important circuitry in a computer

The rise and fall in the pitch of a voice

The application had been sent by her.

Grid failure brings five hundred trains to a halt.

Prabal has sent the email.

The cake was eaten by the children.

Select the option that expresses the given sentence in active voice.

The wounded man was being helped by a few men.

She sew a bag from an old bedsheet.

Choose the option that is the passive form of the sentence.

Switch off the television.

Select the correct passive form of the given sentence. 

He was eating a large pizza.

Change the given sentence into passive voice.

Someone saw the culprit yesterday.