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15.I ____ about what you've said and I've decided to take your advice.(  )
A.thoughtB.have been thinking
C.was thinkingD.had thought

分析 我一直在考慮你的話,并且決定采納你的建議.

解答 答案:B.
現在完成進行時表示從過去的某一時刻開始的動作一直在繼續,直到說話的時候才剛好結束,take one's advice根據句意"一直在考慮你的話"可知選B.

點評 本句考查現在完成進行時,結合句意和語境來判斷運用這一時態是比較合適,其他三項都是過去時的相應時態,和句子的意思吻合度不強.

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