语法填空。

     Many people believe that they   1   (suppose) to drink eight glasses of water   2   day, or about two liters.

Why? Because that is   3   they have been told all their lives.    4    a new report offers some different advice.

The experts say people should obey their bodies; they should drink as   5    water as they feel like drinking. 

     The report contains some general    6    (suggest). The experts say that women should get about 2.7 liters

of water   7  (day). Men should get about 3.7 liters. But wait in each case, that is more than eight glasses.

There is an important difference. The report does not tell people how many glasses of water to drink.  8    

fact, the experts say that    9   may be impossible to know how many glasses are needed to meet these

guidelines. This is because the daily requirement can include the water  10  (contain) in foods.