Question

Today people can shell cities from a distance. (change the voice)​

Answer 1

The voice of the sentence can be changed as follows:

Cities can be shelled from a distance by people today.

How to change a sentence into passive voice?

• When we change a passive voice sentence the subject and object of the active voice sentence are interchanged.
• An auxiliary verb (to be) is added to the passive voice statement which should have the same tense as the tense of the original sentence.
• The main verb of the sentence is changed to its past participle form.