change the following sentence into an active form.All telephone wires have been cut.

To change the sentence "All telephone wires have been cut" into active voice, we first need to identify the subject, the action, and the agent performing the action.

The original sentence is in passive voice, where "All telephone wires" is the subject being acted upon, and there is no explicitly stated agent (the one who cuts the wires). In an active voice construction, we make the agent clear.

One possible active formulation is: "Someone has cut all the telephone wires."

This sentence implies an unspecified agent has performed the action of cutting, effectively transforming the original passive construction into a more direct and engaging active voice. Active voice sentences typically make it clearer who is performing the action, thus enhancing the clarity and impact of the statement.