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            • 1．

                      down the radio a little—the baby is sleeping.

              A、Turning      B、Turn         C、To turn      D、Turned

               

              难度：难
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            • 2．

                    , and the problem will be worked out.

                  A．If you have a bit more effort    B．Having a little effort

                  C．A bit more effort        D．There being a little effort

               

              难度：中等
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