told是什么词性（told后面加什么形式）

是动词的过去分词，中文意思是vi. 讲述；告发，泄密；识别（tell的过去式和过去分词），vt. 告诉，说；辨别；吩咐；断定（tell的过去式和过去分词）

He was told to drop the idea.他被告知放弃这个想法。

It's only fair to add that they were not told about the problem until the last minute.