Bill is an _______ boy.
#51895
A
eight years old
B
eight-years-old
C
eight-year-old
D
eight-year-olds
推荐题目
                  of the students in my school are girls.
#51249
A
Two fifths
B
Second fifths
C
Two fifth
D
Fifth two
Tony is twelve          old, but his sister is only one          old.
#51777
A
year; year
B
years; years
C
years; year
D
year; years
The girls have read ______ books. 
#51263
A
two hundreds
B
hundred of
C
two hundred of
D
hundreds of