Tony is twelve          old, but his sister is only one          old.
#51777
A
year; year
B
years; years
C
years; year
D
year; years
推荐题目
—We’ll have ________ holiday next month. Will you go home?—No. If I go home, I’ll have to take________ ride.
#51764
A
a one-week; seven days
B
an one-week; a seven day’s
C
a one-week; a seven days’
D
one-week’s ; a seven days’
__________ travelers come to visit our city every year. 
#51820
A
Hundreds of
B
Hundred of
C
Five hundreds
D
Hundred
There’re__________ students in our grade.
#51791
A
hundreds of
B
three hundreds of
C
three hundreds
D
three hundreds’