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标题: 一道gwd的题，请教了 [打印本页]

作者: captain_ma 时间: 2006-10-5 22:16
标题: 一道gwd的题，请教了

Because of wireless service costs plummeting in the last year, and as mobile

Phones are increasingly common, many people now using their mobile phones

To make calls across a wide region at night and on weekends, when numerous

Wireless companies provide unlimited airtime for a relatively small monthly fee.

A. Because of wireless service costs plummeting in the last year, and as

Mobile phones are increasingly common, many people.

B. As the cost of wireless service plummeted in the last year and as mobile

Phones became increasingly common, many people.

C. In the last year, with the cost of wireless service plummeting, and mobile

Phones have become increasingly common, there are many people.

D. With the cost of wireless service plummeting in the last year and mobile

Phones becoming increasingly common, many people are

E. While the cost of wireless service has plummeted in the last year and

Mobile phones are increasingly common, many people are.

the correct is d,but i want to know why e is incorrect?why not "while"?

[此贴子已经被作者于2006-10-6 20:06:02编辑过]

作者: captain_ma 时间: 2006-10-6 20:09
up!

作者: captain_ma 时间: 2006-10-7 00:34
up again!

作者: FlowerJay 时间: 2006-10-7 02:31

仔细看了看其他的资料，觉得不应该是Ｄ．．．．理由还不确定，等确定了再贴上来

[此贴子已经被作者于2006-10-7 5:17:38编辑过]

作者: rainman714 时间: 2006-10-7 02:53
a b c 没谓语 E has plummeted in the last year 时态错

作者: captain_ma 时间: 2006-10-7 19:51
雨人兄弟，如果e的时态对的话，while可以吗？谢谢

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