Sam Benton ,the local butcher ,had lost his wallet while taking his savings to hte post office.
请问下,while 前后一个事过去完成时,一个是进行时,而且while后面的还没有动词,直接上非谓语动词,把我都搞糊涂了,这也可以吗?
那请问下had lost 改成 lost