A hare is a very speedy animal. (a)----- a tortoise moves very slowly. (b)------, it has a heavy shell on its back. (c)----- its legs are short. (d) -----, it cannot move as fast as other animals. One morning a hare laughed at a tortoise for its slow motion. The hare asked the tortoise to run a race. (e)----- the tortoise felt hurt, it agreed to the proposal of the hare.