Our teachers always give us good advice.We should follow___.A.What they say B.waht they said 为A?为什么选A 如果选B 原句要怎么改?

问题描述:

Our teachers always give us good advice.We should follow___.A.What they say B.waht they said 为A?
为什么选A 如果选B 原句要怎么改?

Our teachers always give us good advice 是一般现在时,所以follow后面应该跟着主句的时态一样.
Our teachers gave us good advice,we should follow waht they said.
(should作独立的情态动词时候没有过去式和过去分词