1.
. . . . . . . . common sense is . . . . . . . . virtue.

2.
. . . . . . . . Water of this river is dirty.

3.
In . . . . . . . . past, . . . . . . . . air pollution was generally considered basically . . . . . . . . urban phenomenon.

4.
My father is . . . . . . . . teacher.

5.
The robbers entered . . . . . . . . room.

7.
The Amazon in Brazil is . . . . . . . . longest river in . . . . . . . . South America.

10.
Our school maintains . . . . . . . . uniform for . . . . . . . . students.