西南设计院待遇如何:your ten year-old brother is the only boy among

your ten year-old brother is the only boy among He is __,and he has__sister.A.ten years old,an eight-year-old B.ten-year-old,eight year old 1."10岁的"ten-year-old,换ten-year old 行不？2.“5米长的”five-metre long能说成five-metre-long? 16-YEAR-OLD BOY your Chinese new year I have an 18-year-old sister. 关于four－year－old aging for ten year 这句话什么意思 黑人总说your,old school sb.old school是什么意思? customs of new year in your hometown