With more forests being destroyed, huge quantities of good earth ___________ each year.

Eating a lot of _____ and vegetables  ______ for your health.

 The poor ________ living in the mountain ________ top is covered with green trees.                                                     

The teacher together with his students ___ down at the desk and having a discussion in the classroom.

When I was in primary school, I was told that the earth ______around the sun.