20 HOUSES UNROOFED IN WILD STORM; Blackwater Bears Brunt of...
...are u___ to us. They give us w___. Then we can m___ houses...
Then we can m___ houses, paper and many o___ things. Trees also g___ us oxygen(氧气). They help keep the a___ clean. But some people c___ down too many trees. Many birds and animals lose their h___. Our Earth becomes h___ and dry(干旱的)...