The companies are working together to create  _____ they hope will be the best means of transport in the 21st century.

 As a scientist, Madam Curie devoted herself ________ to her research and that was why she was given two Nobel Prizes.

Though having failed several times, Tim, who didn’t give up his dream, _____ made his dream come true.

Most of the fans felt rather disappointed at the concert. They said it could have been _______ organized.

The hotel was nice; the weather was warm; the beaches were beautiful.____ I’d say it was a great vacation.