摘要：8．Thanks to the invention of the mobile phone.people can now keep in with each other quite easily． A．relation B．union C．touch D．connection
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Thanks to the invention of the mobile phone，people can now keep in______with each other quite easily．
A．relation B．union C．touch D．connection
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Thanks to the invention of the mobile phone，people can now keep in______with each other quite easily．
| A．relation | B．union | C．touch | D．connection |