Дело пустячное, но мне нужна хелпа

1) The members of the crew were divided into two unequal groups. 2) Pour some milk ..in.my cup, please. 3).To.. board the plane one should follow the rules for the passengers. 4) When did you decide to set .out..on your journey? 5) Twenty seven divided .by..three is nine. 6) Pat says she always feels sick .by..sea. 7) The child slipped .out..of the house unnoticed. 8) My grandad used to travel on horseback. He always tied up his horse ..by .a tree before he entered a shop or a pub. 9) Midge and his friend saw that a lot of ships were tied ..up.10) It was freezing in the morning. I slipped .on..the ice, fell down but fortunately didn't break anything.