| 单词 | ago |
| 释义 | ago/əˈɡəʊ//əˈɡəʊ/ ★★★★★adv. adv
用法(1)ago是以现在为基准所指的过去,故与简单过去式连用,而不能与完成式连用: I saw him six months ago. (2)以过去的某一时间为基准而提到在它之前的事情时,要用before;因此,直接引句用ago时,如改为间接引句,应换成before: He said, "I saw him six months ago." →He said that he had seen him six months before. (3)下面的句子结构不能用since: It is five years ago that [when] his father died. (他父亲是在五年前去世的。) 同义词
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