Of the four given options, choose the most appropriate

The shopkeepers were told (A)/by the police that (B)/goods were being selled(C)/by them at higher prices (D).

Choose the correct passive voice form.

Please take the stairs because the mall elevator _________ by the technician right now.

Why was it said by him?

Select the correct passive form of the given sentence.

She can do only one thing at a time.

Was the room decorated by him?

Grid failure brings five hundred trains to a halt.

Choose the best way to complete these passive voice sentence 

A story ______

Select the correct active form of the given sentence.

The owner is constructing a new office next to the old one.

Was it taught by him?