和动词时态有关的一道题目

alannesta

1.Founded in 1983, the magazine increased its circulation more than double since then, and its advertising.

A.increased its circulation more than double since then,

B.has since increased its circulation more than double,

C.has since more than doubled its circulation

D.since then more than doubled its circulation

E.more than doubled its circulation since then


我选的是B,但答案是C,句子读起来好饶口啊

zm_patrickS

double sth.是固定搭配，还有increase和double语意重复。
我做的时候也选错了，也觉得绕口，主要是对since这个词的用法，感觉不好。
请nn帮忙分析一下。

zm_patrickS

在prep语法笔记里找到的，请参考。
since的四种用法:
(1) since +过去一个时间点(如具体的年、月、日期、钟点、1980, last month, half past six)。
I have been here since 1989.
(2) since +一段时间+ ago
I have been here since five months ago.
(3) since +从句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.  
(4) It is +一段时间+ since从句
It is two years since I became a postgraduate student.

alannesta

恩~好的~~谢谢拉~~~

IMARCUS

我觉得还有一个平行的问题，最后面， and its advirtising.
doubled its circulations and its advirtising.

sylivayjer

这题的since是有点诡异
感觉应该是since then，since it founded, since 1983的省略，可以这么省略么？

zhouyeying

同问  这个since用得好奇怪 哪里省略了呢