по вертикальному столбу высотой 9 метров движется улитка за день она поднимаетс на 4 м а за ночь опускается на 3 м сколько дней ей понадобится чтобы добраться до вершины

It 1) (be)half past ten at night and Janice 2) (be) alone in the house. She 2) (wait)  for her husband to come home. She  3)(watch) TV when the doorbell  4)  (ring ) .  She 5) (open) the door and 6) (see) a young woman. She 7) (wear) a long white dress and she 8) (hold)a bouquet of flowers. She 9) (ask)Janice to call for a taxi.

Janice 10) (ask) the local taxi service to collect the young woman and 11) (return) to the front door. The young woman 12) (be/not)  there but her flowers  13) (lie) on the doormat. Janice  14) (pick up)the flowers, 15) (phone)  the  taxi service and 16) (cancel) the call. Janice 17) (be) puzzled by the young woman’s mysterious disappearance.

When James 18) (get)home,  she 19) (still/sit) on the stairs. She 20) (show) him the flowers.