must + have + done 是對過去情況的推測,當陳述部分沒有明確的表示過去的時間狀語時,附加疑問要用have的相應(yīng)形式；當陳述部分有明確的過去時間狀語時,附加疑問要用過去時.
You must have lived here for a long time ,haven’t you
You must have seen him yesterday ,didn’t you
You must have seen him off yesterday,A.haven't you B didn't you C.musn't you D needn't you答案選
You must have seen him off yesterday,A.haven't you B didn't you C.musn't you D needn't you答案選
英語人氣：750 ℃時間：2019-08-20 15:19:21
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