问题描述：
I _______ to him because he called me up soon after.
A didn’t need write \x05B needn’t to write
C couldn’t have written \x05D needn’t have written
为什么选D
A didn’t need write \x05B needn’t to write
C couldn’t have written \x05D needn’t have written
为什么选D
问题解答：
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