. He had already learned the news. I ______ the trouble to phone him about it.
A.needn't have taken | B.could have taken |
C.should have taken | D.mustn't have taken |
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. He had already learned the news. I ______ the trouble to phone him about it.
A.needn't have taken | B.could have taken |
C.should have taken | D.mustn't have taken |