“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my
“Icalledyouyesterday.Awomananswered,butIdidn’trecognizehervoice.”“Oh,it_____myauntJea...
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.” A．must be B．must have been C．might be D．can have been
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| B |
| 对过去情况的肯定推测，宜用“情态动词 + 动词完成式”，再根据句意，可确定答案为B。注：can 表示推测通常不用于肯定陈述句。 |
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