问题
选择题
This is ___ __ boy. That girl is _______.
A．an 8-year-old；6 years old.
B．an 8-years-old；6 years old
C．an 8-year-old；6-year-old
D．a 8-year-old； 6-year-old
答案
答案：A
考查复合词。第一空an 8-year-old做定语，故用连记符号形式，第二空6 years old做定语，故选A。