第1个回答 2008-03-18
His bike having been lost=After his bike was lost.
(he had to 前面没有连词,故前面用动词ing表伴随.)
不能选B,
bike是被丢的,所以肯定用be lost这个结构.而B中是主动结构.
第2个回答 2008-03-18
动作发生在谓语之前,所以用完成式这是其中一点
还有一点就是前后主语要相同 A可以改成he having lost his bike
改成被动句His bike having been lost.是避免重复
第3个回答 2008-03-18
B选根本就是个错误句子,LOST放在这里以什么样的形式呢?想通了就了解了,不过其实口语里面是不会说His bike having been lost. 的倒是真的本回答被提问者采纳