大全138 请教！

jackie32

1.        As sales of cars and light trucks made in North America were declining 13.6 percent in late February, many analysts conclude that evidence of a recovering automotive market remains slight.

(A) As sales of cars and light trucks made in North America were declining 13.6 percent in late February, many analysts conclude

(B) Since sales of cars and light trucks made in North America declined 13.6 percent in late February, and many analysts conclude

(C) With sales of cars and light trucks made in North America declining 13.6 percent in late February, with many analysts concluding

(D) Because sales of cars and light trucks made in North America declined 13.6 percent in late February, many analysts concluded（D）

(E) Because of sales of cars and light trucks made in North America declining 13.6 percent in late February, therefore, many analysts concluded

请问为何 concluded 后的从句中动词时态可以用现在时？

jackie32

no reply......

yangzhi1984

因为是科研或统计结果中的一种，所以使用一般现在式。

elithian

放心，GMAC不会那么傻的。。。