改错：The 12-year-old boy is old enough to look after him.The 12-year-old boy is old enough to look after him.

改错：The 12-year-old boy is old enough to look after him.The 12-year-old boy is old enough to look after him. The dog is one .选择A year B years old C old D year old My son is eight year old.改错 ‘I am twelve year old.'怎么改错 I am eleven year old.（改错） The boy is 1-year-old （改错）What does the teacher ofen say her students?（改错） The winner of photo competition last time was an 18-year-old boy改错 单句改错How slowly the three-year-old boy is to learn to talk The professional tennis player is______.A.an eighteen year old girl B.an eighteen-year-old girl C.an eighteen years old girlD.an eighteen-year-old girl how old is the old woman i think she isA.70-year-old B.70 yearsC.70 year old D 70 years old 说下为什么 The _ boy is Tom's brother.A 8-year old B 8 years old C 8year old D 8 years' old 请说明理由不知为什么 Mary is( )girl.A.an 8 year old B.8 years old C.the 8 years old D.an 8-year-old选择 The little girl is my_____sister.A 10 years old B 10-year-old The main character of this game is( )girl.A. a 11-year-old B.an 11-year-old My daughter is nine year old 怎么改错 the( )woman is my aunt A forty years old B forty- year -old C forty- years- oldDforty years' old The little boy is only _____ A.five year old B.five-year-oldC.five-years-old D.five old填选项里的 Mary,a ___ girl,is standing under the tree.A.six year old B.six years old C.six-year-oldD.six-years-old