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标题: 时态问题??? [打印本页]

作者: xiaoyue    时间: 2005-9-15 06:45     标题: 时态问题???


While the cost of wireless service has plummeted in the last yearand mobile phones are increasingly common, many people are

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.

这句话中划线部分的时态有没有问题啊?完成时可以用在这种时间状语前面吗


作者: janetzhj    时间: 2005-9-15 11:33

in the last year就是完成时的标志,注意区分last year用过去时。

加油呀!

作者: xiaoyue    时间: 2005-9-17 07:37

谢谢楼主!!!
作者: gator21    时间: 2005-9-19 06:23

强呀!楼主可不可以解释一下为什么in the last year就是完成时的标志?




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