"Ultracet is proved to be an effective medicine to relieve pain".
Thank you.
Many research studies have proved Ultracet to be an effective medicine to relieve pain.
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Many research studies have proved Ultracet to be an effective medicine to relieve pain.
cat navy 425Ultracet is proved to be an effective medicine to relieve pain.
When you have a passive sentence with no by-phrase of agent, you have to provide the agent in the active version, usually "someone", possibly "people".
Someone proves Ultracet to be an effective medicine to relieve pain.
Neither the passive nor the active s