---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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---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 |