Use prepositions or adverbs if necessary. the language … australia is english. the climate … australia varies … the cool and temperate. australia is the driest continent … the earth. about one half … its territory is occupied … deserts and semi-deserts. the commonest trees … australia are the eucalyptus, … which there are over 500 kinds. there are also acacia or mimosa, which is the national emblem … australia. even stranger than plants are the animals. there live kangaroos, duck-bills, koalas and a great number … different birds, parrots …them.