1.   A hundred years ago it was widely believed that there was life on Mars.

2.   All life is interdependent on the natural environment, from the smallest bacteria to the largest animal or plant - even man.

3.   Although these were happy times for me and we seemed to feed regularly, life was rather hard.

4.   And as he talked, I thought how ludicrous life sometimes was.

5.   And how extraordinary his life was already.

6.   And life there is never dull.

7.   Ants are social insects, so their life is a fairly complicated one.

8.   As a student, life was a constant battle against debt.

9.   At the other end of the social scale, life is a constant struggle to get enough to eat.

10.   Book Week sets out every year to persuade children that life is not square and sits in the corner with knobs on.