答案 A.must have been troubled
這里是must have been表對過去的推測,had been是陳述事實.
前面同一個說話人提到“她遲到過嗎?”可以看出她以前沒有遲到過,但是現(xiàn)在遲到了,這里說話人是在猜測她現(xiàn)在遲到的原因.那她現(xiàn)在遲到，為什么不可以表示對現(xiàn)在的推測呢？這里的時態(tài)是過去?。?div style="margin-top:20px">
Has she ever been late for school?I'm afraid she ___________ by someone on the way here.A.must have been troubled B.must
Has she ever been late for school?I'm afraid she ___________ by someone on the way here.A.must have been troubled B.must be troubled C.had been troubled D.would have been troubled 麻煩講一下原因最好
英語人氣：346 ℃時間：2019-09-17 20:26:31
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