—What caused the accident?
—It was my fault, sir. I to the left.
A. ought not to have turned
B. needn’t have turned
C. shouldn’t turn
D. couldn’t turn
网友回答
(答案→)A. ought not to have turned
B. needn’t have turned
C. shouldn’t turn
D. couldn’t turn
解析：本题的语意环境为：是我导致了这场事故，我本不该向左拐。ought not have done=shouldn’t have done本不该做某事；needn’t have done：本来没有必要做某事而做了。故选A。