• I hope that
  this Christmas.
• By 2020, the average temperature
  much higher than today.
• I'm sure that
  time to finish the homework before we go out.
• I think
  a new haircut for my sister's wedding.
• Some people think that gasoline
  in the future.
• A few scientists think that new technology
  the problem of global warming.
• I don't think that this president
  another election.
• Some scientists think that
  melt the polar ice caps by 2050.
• If I study hard,
  the math exam.