GWD 3-11求助

No.25 GWD3-11: GWD11-11

Retailers reported moderate gains in their November sales, as much because of their sales of a year earlier being so bad as that shoppers were getting a head start on buying their holiday gifts.

A.       of their sales of a year earlier being so bad as that

B.       of their sales a year earlier having been as bad as because

C.       of their sales a year earlier being as bad as because

D.       their sales a year earlier had been so bad as because

E.       their sales of a year earlier were as bad as that

nn们这题如何迅速解决？

我的快速做法是：

先浏览题目，看到了because of 后面的句子有being后，立刻排除A,B,C，因为这里要优先使用because + 句子

再看C,D选项，比较一下，除了时态不同外，还有一个重要的不同，一个是D后的because，一个是that。回到句子去检验，看后面的句子是不是原因，发现是，立刻选择D。

我用了大概14秒钟。