19．Whenever you____ a present，you should think about it from the receiver's point of view．（　�。�
A．boughtB．have boughtC．buyD．will buy

分析 無論什么時候你要買一件禮物，你應當考慮來自接受者的觀點．

解答 答案：C．考查動詞時態(tài)用法．題干中whenever引導的時間狀語從句，從句中說明的一般情況，用一般現(xiàn)在時，故答案選C．

點評 對時態(tài)的選擇，要在把握時態(tài)的基本用法的基礎上，根據(jù)具體語境和題干中的時間推斷時態(tài)，同時關注特殊的結構．

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