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            • 1．

                  Recently I went on a vacation to Canada with my mom and my sister. When we arrived, tired from our six-hour plane ride, we had to wait 45 minutes  61  (go) through customs. When it was our turn, my mom went to the counter  62  (follow) by my sister and me. An officer checked our passports and asked my mom the usual  63  (question), "Why are you coming to Canada? Are you looking forward  64  the trip?"

                  Then I felt the officer was a little personal when he asked us  65  our father was. My sister and I didnˈt know how to answer. We weren’t sure how to express  66  (we) about it. After 30 seconds, my sister, who was four months  67  (young), said, "Our father is up in the heaven."  68  (hear) this, the officer looked at us and said, "All right."

                  My sister and I were both just several months old when we  69  (take)into the family mother. My has never married. I know if she hadnˈt adopted us, she could have had her own children. My mom isnˈt my birth mother.  70  , in my heart, she is.

              难度：中等
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            • 2．

              Many of us were raised with the saying “Waste not, want not.” None of us, however, can 61   (complete) avoid waste in our lives.

                  Any kind of waste is thoughtless. Whether we waste our potential talents, our own time, our limited   62 (nature) resource, our       money, 63  other people’s time, each of us can become more aware and careful. The smallest good habits can make a big   64 (differ). It’s a good feeling to know in our hearts we are doing our best in a world  65  is in serious trouble. By being devoted to 66  (save) oil, water, paper, food, and clothing, we are playing   67 part in cutting down on waste.

                   We must keep reminding 68   (we) that it is easier to get into something than it is to get out of it. Actually, severe damage  69  (do) to our land is fairly recent in the history of our evolution. It’s time for us to say no to waste so that our grandchildren’s children  70  (be)able to develop well. We can’t solve all the problems of waste, but we can encourage mindfulness.

              难度：中等
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            • 3． —How can Bob look so young and stay energetic in his fifties?

                 —He says he always imagines _______ adolescents.

                    

              A．him being
              B．him to be
              C．himself to be
              D．himself being
              难度：中等
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            • 4．

               To their great fear, they found ____ in the heaviest snowfall they had ever had.

              A. they were catching             B. themselves caught   

              C. they had caught                D. themselves catching

               

              难度：中等
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