改错题 He became very impatient and phoned the post office to ask why it was no mail delivery.
问题描述:
改错题 He became very impatient and phoned the post office to ask why it was no mail delivery.
改no mail delivery.
答
it was no mail改为there is no mail delivered
意思是“没有信件”
delivered动词过去分词做后置定语“已发送的”
不知道楼主是否认同.如有异议,愿洗耳恭听.相互学习.