问题
选择题
It is five years since we began to enjoy a spring holiday every year.[ ]
A. ten-day
B. ten day
C. ten day's
D. ten-days
答案
答案：A
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It is five years since we began to enjoy a spring holiday every year.[ ]
A. ten-day
B. ten day
C. ten day's
D. ten-days
答案：A