—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. needn’t have brought
C. didn’t need to bring
D. don’t have to bring
网友回答
A. needn’t bring
B. needn’t have brought
(答案→)C. didn’t need to bring
D. don’t have to bring
解析：正确理解场景中的句子含义很重要。上文很遗憾地说没带字典，下文说不必带，因为不被允许用字典，时态是过去，因此A、D排除，B尽管是need+完成时表示过去，但含义不对，needn’t have brought意思是“本不必带来”，隐含的意思是实际上带来的，与题目中交代的情况不符，只有C从时态和含义上都正确。