Do you know a spaceship flies at about nineteen kilometers ________ second?
#33191
A
the
B
a
C
/
D
an
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Peter has ______ cough and he has to get ______ X-ray.
#32072
A
an; a
B
a; a
C
a; an
D
an; an
Lily is _____ girl .
#33240
A
a 8-years-old
B
an 8-years-old
C
an 8-year-old
D
a 8-year-old