Have you considered how weak humans are   a volcano, hurricane or earthquake?

________ one foot before the other, slowly and purposefully, the deer walked up to ______ I was _______.

______ twice, the postman refused to deliver our letters unless we chained our dog.

My father enjoys his spare time by reading newspapers or________to music.

       form the moon, our earth with water        .seventy percent of its surface, appears as a blue ball.