Fred is()_ boy. He can swim and skate well.
A.a 11-year old B.an 11-year-old C.a 11-years–old D.an 11-years-old正确答案B
Fred is()_ boy. He can swim and skate well.
A.a 11-year old B.an 11-year-old C.a 11-years–old D.an 11-years-old正确答案B
