Kangaroos mainly live in Australia. There are【小题1】 different kinds of kangaroos. They use the back legs for 【小题2】 and long strong 【小题3】 for resting on. They have one baby each  year  and  the  baby  kangaroos  stay  in  their  mother’s  pocket  for【小题4】. Kangaroos have strong legs and can jump very fast, but they only eat fruit, 【小题5】 and grass.