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            • 1．

              – Your family is moving to Hawaii? Why?

                 – We ______ about a change of scenery for some time.

              A．have been thinking
              B．had thought
              C．think
              D．thought
              难度：中等
              解析 收藏 试题篮
            • 2． —why, Jack, you look so tired!
              —Well, I _____the house and I must finish the work tomorrow.
              A．was painting   
              B．will be painting  
              C．have painted 
              D．have been painting
              难度：中等
              解析 收藏 试题篮
            • 3． I have to see the doctor because I       a lot lately. 
              A．have been coughing  
              B．had coughed
              C．coughed           
              D．cough
              难度：中等
              解析 收藏 试题篮
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