题目

根据所给单词适当形式填空。【1】He ______ (wake) up and found himself alone at home.【2】We are living in a world full of ______ (amaze) things.【3】Please turn down the radio a little, It’s too ______ (noise).【4】She didn’t study hard, so she ______ (fail) the exam.【5】A falling tree ______ (hit) a car just now.【6】You’d better knock on the door before ______ (enter) a room.【7】Thomas Edison was very c______ (create). He invented a lot of important things.【8】When I was young, my father ______ (teach) me to swim.【9】—Do you want me to drive you to t甲、乙、丙3人站到共有7级的台阶上,若每级台阶最多站2人,同一级台阶上的人不区分站的位置,则不同的站法种数是　　　　(用数字作答).