Question

Mike is ________ American boy． [　　] A． eight-year-old． B． a eight-year-old C． an eight-year-old D． eight years old

Answer 1

答案：C
解析：

复合形容词作定语修饰名词，故排除D，另外该复合形容词以元音音素开头，故前用an不用a。