Объясните на примере измерения длины отрезка равенство: 3*2=6??????

Помогите сделать ex67, p249 ин.яз. Афанасьева и Михеева Student`s book. Срочно!! Пожалуйста... 1. A. Open the brackets to make the story complete.

  Deep in a lonely forest there once (1. live) a woodcutter. One day the woodcutter (2. cut) down trees, when he (3. hear) a cry of a bird. He (4. wonder) what (5. happen) and (6. go) (7. look) at the bird. Under a big green bush he (8. see) a nest that (9. build) by a bird, with many eggs inside it. A great snake (10. prepare) (11. kill) the mother bird, who bravely (12. defend) her nest. The woodcutter (13. strike) the snake with the stick that he (14. find) in the forest and (15. kill) it. Some years after this, the woodcutter one day (16. set) out on a journey. He (17. walk) along a lonely mountain path, hungry and tired, when night (18. fall). Suddenly, he (19. see) a light in the woods. He (20. go) toward this light and (21. come) to a large beautiful house that (22. build) in the middle of the wood by some mysterious people. The woodcutter (23. be) surprised as he (24. not, expect) to find such a fine house so deep in the forest. He (25. knock) on the door, and a beautiful young woman (26. come) out.

предложения со словами украдкой и смекнуть?

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