What’s this? It’s        “Nn” and       “u”.
#33607
A
an, an
B
a, a
C
a, an
D
an, a
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This  is      ruler .      ruler  is  yellow .
#33873
A
the ; a
B
a ; A
C
the ; The
D
a ; The
Lily is _____ girl .
#33240
A
a 8-years-old
B
an 8-years-old
C
an 8-year-old
D
a 8-year-old