選B
must have done表示對(duì)于過去的事情的一種推測(cè).somebody be disappointed表示失望.所以后半句的意思是“他一定很失望”為何不選aA里面，沒有be動(dòng)詞啊。be disappointed 才表示失望。B選項(xiàng)中的been就是be的過去分詞形式。
He failed in the driving test again.He _________.A.must have disapointed B.must have been
He failed in the driving test again.He _________.A.must have disapointed B.must have been
He failed in the driving test again.He _________.
A.must have disapointed B.must have been disappointed
C.might be disappointed D.couldn’t be disapointed
He failed in the driving test again.He _________.
A.must have disapointed B.must have been disappointed
C.might be disappointed D.couldn’t be disapointed
英語人氣：747 ℃時(shí)間：2020-04-15 04:50:31
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