因為的單詞怎么寫英語

　　They knocked off $60 because of a scratch.

　　因為有擦痕他們將價格降了60元。

　　He had been fired because his singing was flat.

　　他因為唱音偏低已被解雇。

　　I didn't get it because it cost too much.

　　因為那東西太昂貴我沒買。

　　I started to cry because I cut my finger.

　　因為割破了自己的手指，我哭了起來。

　　John liked him because he was a nervy guy.

　　約翰喜歡他，因為他是個不怕事的家伙。