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(xiàn)在完成進(jìn)行時表示從過去的某一時刻開始的動作一直在繼續(xù)，直到說話的時候才剛好結(jié)束，take one's advice根據(jù)句意"一直在考慮你的話"可知選B．

點評 本句考查現(xiàn)在完成進(jìn)行時，結(jié)合句意和語境來判斷運用這一時態(tài)是比較合適，其他三項都是過去時的相應(yīng)時態(tài)，和句子的意思吻合度不強．

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