Traffic conditions in Beijing ________ for decades. At first people only complained about jams during rush hours,but today every hour is rush hour.
A.is worseningB.have worsened
C.have been worseningD.worsened
C

試題分析:考查現(xiàn)在完成進行時。本題的關(guān)鍵詞是for decades多年以來,該時間狀語常常與現(xiàn)在完成時連用。而根據(jù)句意指多年以來一直都在變得更糟糕,故使用現(xiàn)在完成進行時。句意:北京的交通情況多年以來一直都在變糟糕。起初的時候,人們只是抱怨交通堵塞高峰期。但是現(xiàn)在每個時候都是高峰期。故C正確。
點評:現(xiàn)在完成進行時表示動作從過去開始,一直持續(xù)到現(xiàn)在。
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