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        1. We____here two hours ago . So we___ _here for two hours .
          A.have arrived , have beenB.have come , have been
          C.came , have comeD.a(chǎn)rrived , have been
          D

          試題分析:句意:我們兩小時前到達這里。因此我們已經(jīng)在這兒兩個小時了。結(jié)合語境可知前文描述的是過去某事發(fā)生的動作,故用一般過去時態(tài)。下文描述的是從過去某事持續(xù)到現(xiàn)在并將繼續(xù)下去的動作,故用現(xiàn)在完成時態(tài)。選D。
          點評:英語中的時態(tài)主要是借助于時間狀語與上下文語境來進行判斷。解答此類題型,首先要注意句子中的時間狀語,如果沒有則要通過分析上下文,結(jié)合語境來判斷句子的時態(tài)。
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