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.

One day a Crab said to her son:"Why do you walk crookedly? Why don't you walk straight?''The young Crab looked at his mother who was walking with him.He saw that his/the mother walked crooledly too.''Mother'', - said the young Crab, ''if you can show me how, maybe I can learn how to walk straight''