特岗教师考试

【单选题】--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

网考网参考答案：B
网考网解析：
对过去情况的肯定推测应用“情态动词+have+过去分词”，且根据句意，可以推断B为正确答案。注意：can表示推测时通常不用于肯定陈述句。 查看试题解析出处>>