Question

'They have cut all telephone wires'. The passive voice of the above sentence is

• A. They cut all telephone wires.
• B. All telephone wires have been cut.
• C. The telephone wires were cut.
• D. All telephone wires had been cut.

Answer 1

Answer:

B. All telephone wires have been cut.

If have comes in active voice it is changed into have + been in passive voice.