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14. As sales of cars and light trucks made in ffice:smarttags" />North America were declining 13.6 percent in late February, many analysts conclude that evidence of a recovering automotive market remains slight.
ffice ffice" />A. As sales of cars and light truks made in North America were declining 13.6 percent in late February, many analysts conculde
B. Since sales of cars and light trucks made in North America declined 13.6 percent in late February, and many analysts conclude
D. Because sales of cars and light trucks made in North America declined 13.6 percent in late February, many analysts concluded
想问个小问题， 如果B, 把那个and去掉， 然后把conclude加上ed， 是不是也是一个对的答案啊？ | 
