It’s said that of the water around the world polluted.

In such a fierce competition, aperson has to make every effort if he_______.

I feel sure that ____ qualification, ability and experience, our headmaster is abundantly equal to the position we have in mind[ ]

foolish of him to ____his notes duringsuch an important test, and as a result, he got punished.

I was doing my homework while my parents__________ TV last night.