hold的過去式和過去分詞是什么

　　例句：

　　He held out a small bag tied with string.

　　他拿出一個(gè)系著細(xì)繩的小袋子。

　　I held up a hypodermic to check the dosage.

　　我屏住呼吸沉入水底。

　　We would have held the story over until the next day.

　　我們原本是要把報(bào)道推遲到第二天的。