885,SEC16-6

小宇宙2010

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

主要是A,D的区别，为什么这里conclude必须要用过去时？而conclude引导的从句又用的是一般现在时。是否存在矛盾？

shlshing

在那不准的时候先看其他的问题，A中的were declining 13.6 percent 是明显的错误.

victoria820

一句句子的前后时态要一致吧，前面是过去时declined，后面也应该是过去时，除非有很明显的时间状语标志词出现。

Kath1986

D 時態前後不一致，為什麼對?

静若水

因为concluded后面是说明一个事实，所以可以用一般现在时。例如：Galilei concluded that the earth is round.