Rearrange the following up words into meaningful sentences.
a. to /and /herself /hillside /the/ with /story /grumbling / down / begins /rat / tumbling/ the /muttering
b. Valley /are /the /their /humans / invading /peaceful /beautiful /and
a. The story begins with the rat thumbing the hillside, grumbling and muttering to herself.
b. The humans are invading their peaceful and beautiful valleys.
b. The humans are invading their peaceful and beautiful valleys.