Pune was rocked by five explosions today. Given sentence is in simple past tense and it is in active voice, we need to change it into passive voice. Rule : Subject + (was / were) + V3 + Optional Agents.
From Voice · English Language Competence Test
He said to her, "Don't read so fast."
God gives us happiness.
Someone has lit the fire.
Where did you send the parcel?
The peon refused him admittance.
A meeting was proposed to be held.
They will demolish the entire block.
Tiny houses dot the landscape.