Stephen Hawking (consider) to be 'the greatest scientist in history', along with Isaac Newton and Albert Einstein.
Look left and right to make sure it's safe before you go a the street.
Jack went to school without breakfast, so he is h now.
When they felt after the flood,the charity offered them food and clothes.(help)
Scientists often that farmers use natural ways to grow fruits.(suggestion)
Our manager greeted the guest with a smile at the entrance.(polite)