who told you to clean the floor?our teacher___,He said it was too dirty
问题描述:
who told you to clean the floor?our teacher___,He said it was too dirty
A:toldB:didC:had told D:has told
为什么不可以用told呢
答
B:did
省略的用法,通常用do /is 等省略宾语表语..