一般情况下是不可以省略的,尤其是在完整的陈述句中.例如：I can sing a song in French.这里就不能说：I can a song in French.
但是,有一些特殊情况是可以省略的：反义疑问句如：I can swim, can you?这里就省略了第二个can后面的动词.回答情态动词引导的特殊疑问句如：-Can you swim? -Yes, I can.这里省略的是答句里的动词.还有一些比较少见的特殊情况,例如并列的情态动词,后面接的是同一个动词,有时即可省略.如：He didn't help her, but he could.这里因为could后面的动词也是help,因此这里省略了动词.
如果还有问题,欢迎追问.
如果满意请采纳为满意答案.
再问： O(∩_∩)O谢谢 那Charles did what he could to rescue the servant ,although he himself was in danger。这句话中的could后是省略了do吗？
