单项选择题
[听力原文] M: How much are these pens, please W: 2 for 7 dollars now. They used to be 5 dollars each.
A．＄ 7. B．＄ 10. C．＄ 5. D．＄ 14.
A．Human resources should talk to personnel B．She suggests hiring a couple of engineers to help them modernize the factory. C．She suggests talking to staff at the factory. D．She suggests they should stay competitiv