题目内容
28. ---- Who told you my email address?
---- I don’t remember clearly. It _______ Karen.
---- It _______ Karen. She doesn’t know my email address.
A. may have been; can’t have been B. must have been; mustn’t have been
C. may have been; must have been D. must have been; mustn’t be
A。
解析:
根据题意“I don’t remember”可知第一空是要表达“可能是Karen
的)”;又根据“She doesn’t know my email address. ”可知说话人认为“不可能是Karen.”.
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