From the given alternatives, choose the one which best expresses the sentence in Active/Passive voice.
You can play with these pups quite safely.

These pups can be played with quite safely.

The correct answer is These pups can be played with quite safely.

The original sentence is in active voice, with the subject "you" and the verb "can play". To change it to passive voice, we make the object of the active sentence, "pups", the subject of the passive sentence. The verb "can play" becomes "can be played with", and we do not add the preposition "by" because the subject of the active sentence is not mentioned in the passive sentence. This gives us the passive voice sentence "These pups can be played with quite safely".

The other options are incorrect.

• These pups can played with quite safely is grammatically incorrect. The past participle "played" should be "played with".
• These pups can play with you quite safely is in active voice, but it changes the meaning of the sentence. The original sentence means that you can play with the pups without getting hurt, but the passive voice sentence means that the pups can play with you without getting hurt.
• These pups can be played with you quite safely is also in passive voice, but it is not grammatically correct. The preposition "with" should not be used with the verb "be played with".