Read the text below and think of the word which best fits each space. use only one word in each space one day a crab to her son: "why you walk crookedly? why don't you straight? '' the young crab looked at his mother was walking with him. he saw that mother walked crooledly too. ''mother'', - said the young crab, ''if you can show me how, maybe i can learn how to walk '' words; said, do, walk, who, his, the, straight.