问题
How old is Steve?—He is ____________ and he has an ___________ sister.
A:13-year-old; 10 years old
B:13 years old; 11-year-old
C:13 years old; 10-years-old
D:13-years-old; 11-years-old
B:13 years old; 11-year-old
C:13 years old; 10-years-old
D:13-years-old; 11-years-old
正确答案是：
