----well,I forgot to bring my dictionary here yesterday.----Actually you_____it here.----Well,I forgot to bring my dictionary here yesterday.----Actually you_____it here.You were not allowed to use it.A.needn't bringB.didn't need to bring为什么?a哪里不对了?

问题描述:

----well,I forgot to bring my dictionary here yesterday.----Actually you_____it here.
----Well,I forgot to bring my dictionary here yesterday.
----Actually you_____it here.You were not allowed to use it.
A.needn't bring
B.didn't need to bring
为什么?a哪里不对了?

这里是过去时态 - A. 是现在时

因为是昨天的事,所以要用过去时。
而needn't do sth. 是指现在或将来,如:
You needn't come to see me. 你不必来看我。

A.needn't bring如果选A的话,need在这句话里是一个情态动词,needn't bring表示 不准带来,代入题中不符合题意.B.didn't need to bring选B的话,need是一个行为动词,didn't need to bring表示 不需要带来You were not a...