As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.

—Tom’s mistakes in the exam are almost as ______ as Jack’s. —I know that boy. He’s ______ than Jack.

  I don’t know the ____ income of the family, but I do know it is very small.

The ________　temperature of the human body is about 37 degrees centigrade.

In order to be a strong and effective partner with the Asia Pacific region, American president Obama thinks it absolutely      to have a strong relationship with China．