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.

fficeffice" />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？

这个题目选择D肯定是毋庸置疑的，就是因为late Februray,

如果B中 and去掉，然后把conclude写成concluded 那么B这个答案在语法上是没有任何错误的

赫赫：）

okay, 看来对这个题的理解还是可以再往深点走！