D选项为啥不对？？？

Hzhangxueke

More than 300 riversdrain into Siberia's Lake Baikal, which holds 20 percent of theworld's fresh water, more than all the North American Great Lakes combined.

(A) More than 300 rivers drain intoSiberia's Lake Baikal, which holds 20 percent of the world's fresh water, morethan all the North American Great Lakes combined.

(B) With 20 percent of the world'sfresh water, that is more than all the North American Great Lakes combined,Siberia's Lake Baikal has more than 300 rivers that drain into it.

(C) Siberia's Lake Baikal, withmore than 300 rivers draining into it, it holds more of the world's fresh waterthan all that of the North American Great Lakes combined, 20 percent.

(D) While more than 300 riversdrain into it, Siberia's Lake Baikal holds 20 percent of the world's freshwater, which is more than all the North American Great Lakes combined.

(E) More than all the NorthAmerican Great Lakes combined, Siberia's Lake Baikal, with more than 300 riversdraining into it, holds 20 percent of the world's fresh water.

Hzhangxueke

各位牛牛快来定啊！

wangjieava23

D while 表示后面要接一个主句，这里没有

Hzhangxueke

D while 表示后面要接一个主句，这里没有

-- by 会员 wangjieava23 (2012/5/3 19:39:22)

什么什么？没有太懂

wangjieava23

不好意思。昨天看的不仔细。

While more than 300 rivers drain into it, Siberia's Lake Baikal holds 20 percent of the world's freshwater, which is more than all the North American Great Lakes combined.

while 是时间连接词，或转折连接词，句子都没有这层意思表达。