In the last six to nine months,teens in the US to text messaging in numbers twice that in Europe and

题目简介

In the last six to nine months,teens in the US to text messaging in numbers twice that in Europe and

题目详情

In the last six to nine months,teens in the US        to text messaging in numbers twice that in Europe and Asia.
A.tookB.have takenC.had taken D.would take
题型:单选题难度:偏易来源:不详

答案

B

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