The poilceman said that________seen the thief before

问题描述:

The poilceman said that________seen the thief before
A.I had
B.I have
C.he has
D.he had
选那个?为什麼.能给我解释下麼..我想弄明白..

D.he had
said that 说明说这个动作是过去式的,所以他见过那贼是过去的过去发生的
要用过去完成时~