问题补充：
The weather turned out to be fine yesterday. I the trouble to carry my umbrella with me.
A. should have taken
B. could have taken
C. needn’t have taken
D. mustn’t have taken
答案：
A. should have taken
B. could have taken
(答案→)C. needn’t have taken
D. mustn’t have taken
解析：句意：昨天的天气是好的，我没有必要麻烦随身带着一把伞。take the trouble to do不辞劳苦地做某事；A. should have taken应该做某事而未做； B. could have taken 能够做某事；C. needn’t have taken没有必要做某事； D. mustn’t have taken ，must不能用否定句中。根据句意故选C。
