ChaseDream

标题: GWD1-32 [打印本页]

作者: sjseido 时间: 2006-8-10 01:07
标题: GWD1-32

Q32:

To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

have to know a great deal more than now about the social and economic
have to know a great deal more than they do now about the social and economical
would have to know a great deal more than they do now about the social and economical
would have to know a great deal more than they do now about the social and economic
would have to know a great deal more than now about the social and economical

The answer is E.

But, 1. 为什么是"would have to"而非"have to"?

2. 为什么是"than now"而非"than they do now"?

3. 为什么是"economical"而非"economic"?

请大家指教，多谢了！

作者: sjseido 时间: 2006-8-10 02:51

是不是我的问题太简单了，所以才没人回答？

这是我第一次来这里问问题，因为周围找不到战友，所以有问题只能到这里麻烦大家，希望大家能帮助我解决问题。谢谢！

[此贴子已经被作者于2006-8-10 2:52:22编辑过]

作者: sjseido 时间: 2006-8-10 04:51

I just searched "讨论汇总" and found that the answer should be D.

Thanks!

欢迎光临 ChaseDream (https://forum.chasedream.com/)