he was thought to have been killed twenty years ago如果把have往前提改成
问题描述：
he was thought to have been killed twenty years ago如果把have往前提改成
he had been thought to be killed twenty years ago 这样可以吗?意思有区别吗
答
不能这样改.He was thought to have been killed twenty years ago.人们认为他在二十年前被害了.这里的动词不定式的完成式形式只是表示一个已经发生的动作,并不是真是意义上的现在完成时态.因此,它能与表示过去时间...