15．-Did you note down what the teacher said？
-Sorry．I          my Iphone 6 just now．（　�。�
A．had playedB．have playedC．would playD．was playing

分析 ---你記下老師說的了嗎？
---對(duì)不起，我剛才在玩Iphone 6手機(jī)．

解答 答案選D
根據(jù)句意得知"noted down what the teacher said，"與"play Iphone 6"兩個(gè)動(dòng)作同時(shí)進(jìn)行，即：沒記下老師說的，是因?yàn)楫?dāng)時(shí)正在玩手機(jī)，所以要用過去進(jìn)行時(shí)．故選D．

點(diǎn)評(píng) 過去進(jìn)行時(shí)，是表示過去某時(shí)正在進(jìn)行的狀態(tài)或動(dòng)作．結(jié)構(gòu)為（was/were+doing）．
例如：What was she doing at nine o'clock yesterday？
　　  昨天晚上九點(diǎn)她在做什么？
　　  When I saw him he was decorating his room．
　    當(dāng)我看見他的時(shí)候他正在裝飾房間．

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