Question

【题目】I ______have been more than six years old when the accident happened.

A．shouldn‘t B．couldn't

C．mustn't D．needn't

Answer 1

【答案】B

【解析】

试题分析：本题考查情态动词的用法。must表推测只能用于肯定句，否定句用 can't/couldn't 代替。shouldn't have done表示“本来不该而实际上却做了”，needn't have done表示“本来不必而实际上却做了”，均不合题意。本句译为：当事故发生时我不可能超过6岁。