Mary is a___ girlA、sevenyears old B、seven-years-old C、seven-year-old D、seven-yearold 求 为什么选这个答案
问题描述:
Mary is a
___ girlA、seven
years old B、seven-years-old C、seven-year-old D、seven-year
old 求 为什么选这个答案
答