By the first day of August, 2007, the PLA has its ______ birthday.
#51372
A
eighty
B
the eightieth
C
eightieth
D
eighties
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My sister got a beautiful present on her ________ birthday.
#51423
A
fiveth
B
five
C
the fifth
D
fifth
________ people lost their lives in the earthquake.
#51766
A
Hundred
B
3 Hundreds
C
Hundred of
D
Hundreds of
There are _____ boys on the playground. 
#51480
A
for
B
forteen
C
fourty
D
forty
——How old is the baby boy?   ——He is an ________ boy. 
#51685
A
8 months old
B
10 month old
C
8-month-old
D
10-month-old
This picture is quite old, we can still see it was drawn in           century.
#51884
A
sixteen
B
the sixteen
C
sixteenth
D
the sixteenth