1.It is not possible to clean up the river in two days.
  _______ _______ to clean up the river in two days.
2.It is full of hope for the team to win the match.
  It _______ _______ for the team to win the match.
3.You know these papers can be used again.
  You know these papers can _______ _______.
4.We all hope that the project will be a success.
   We all hope that the project will _______ _______.
5.Drinking polluted water is not healthy.
   Drinking polluted water _______ _______.