Mary is seven years old now .This autumn she S—— her school.横线上填什么单词?最好能把意思说一下,我想了半天都翻译的不通顺.

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 Mary is in Grade Seven 改为复数 Mary is in Grade Seven(对seven提问) Mary is an English girl ,but she lives in Paris.She is seven years old.Her mother says to her,“”Mary is an English girl ,but she lives in Paris.She is seven years old.Her mother says to her,“You are seven now,Mary.You are going to school here.I ( ) His danghter is ________.A seven years B seven year old C seven years old 英语阅读理解选择.Mary is an English girl ,but she lives i英语阅读理解选择.Mary is an English girl ,but she lives in Paris.She is seven years old.Her mother says to her,“You are seven now,Mary.You are going to school here.I’m sure Mary is 8 years old.同义句 短文：mary has four cousins.they are betty,peter,bill and ann.mary is the oldest of the five.betty is thirteen years old.she is two years younger than mary and one year older than peter.bill is nine,and ann,the youngest ,is seven.提问there are__ Mary is 12 years oid[对12 years oid提问] Mary is six years old(对six years old提问 Alice is four years old.Mary is eight years old.(同义句转换) Mary is_______Alice's________. 【同义句】Mary left the company in 2005.=Mary ____ ____ ____ the company ____ seven years. Alice has two sisters.They are Mary and Ann.Mary i____ thirteen years old.Ann is seven years old.Alice and Mary s____ in a middle school.Ann studies in primary s____.They are all good s____.(根据首字母提示补全短文） She is 13 times seven in dog years. 怎么翻译? helen is (thirty-seven)years old的适当形式填空 Eve is six years old.Erin is seven years old.合并句子 .Erin is ------- ------- ------- -------- Eve he is seven years old 对划线部分提问 划线部分是seven Lucy is eight years old.Lily is seven years old. 合为一句话