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.
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.
Because of wireless service costs plummeting in the last year, and as mobile phones are increasingly common, many people
As the cost of wireless service plummeted in the last year and as mobile phones became increasingly common, many people
In the last year, with the cost of wireless service plummeting, and mobile phones have become increasingly common, there are many people
With the cost of wireless service plummeting in the last year and mobile phones becoming increasingly common, many people are
While the cost of wireless service has plummeted in the last year and mobile phones are increasingly common, many people are 答案:E 请问这题D为什么不对呢?谢谢