13．-Have you cleaned your room_____？
-Yes，I've_____cleaned it．（　　）
A．already，alreadyB．yet，yetC．already，yetD．yet，already

分析 ---你打掃你的房間了嗎？
--是的，我已經(jīng)打掃了．

解答 答案：D．
根據(jù)-Have you cleaned your room_____？-Yes，I've_____cleaned it．可知---你打掃你的房間了嗎？--是的，我已經(jīng)打掃了．這里考查already，yet的區(qū)別．a(chǎn)lready用在肯定句中，yet用在否定句或疑問(wèn)句中．故選D．

點(diǎn)評(píng) 比較和分析already，yet的不用含義及其用法是解答該題的關(guān)鍵；還要根據(jù)句中信息正確推測(cè)該句句意，進(jìn)而作出解答．

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