根据句意和汉语提示，填写单词
(1)The knife is made of____ (金属).
(2)Walter Elias Disney____ (创作) lots of cartoon characters.
(3) Shall I write my answer above or ____ (在……下面) the line?
(4) While he was walking ____ (朝着) me, I said hello to him.
(5) I ____ (敲) at the door, but there was no answer.