问题补充:
It was fine yesterday so I the trouble to carry my raincoat with me.
A. don’t need to take
B. mustn’t have taken
C. didn’t need to take
D. needn’t have taken
答案:
A. don’t need to take
B. mustn’t have taken
(答案→)C. didn’t need to take
D. needn’t have taken
解析:考查need的用法:句意:昨天天很好,所以我不必费事带雨衣。因为是昨天的事情,用过去时,didn’t need to do,A项的时态错误,Bmustn’t不能用于+have done的结构,D。needn’t have done本不必做而做了。都不符合句意。选C。