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—What’s this in English? —It’s ______pen. It’s _______orange pen.
#34495
A
a, a
B
a, an
C
an, a
D
an, an
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That is ________ interesting work.
#32511
A
an
B
a
C
the
D
/
_____ tall boy named Paul is _____ American.
#32209
A
A; an
B
The; an
C
An; a
D
The; a
— Look, that is ____ elephant.         —Yes, it’s very strong.
#33983
A
a
B
an
C
the
D
\
When did you finish your homework, at        noon or in        afternoon?
#33503
A
the; an
B
/; the
C
a; the
D
the; /
She is           unusual writer comes from           European country.
#32036
A
an；an
B
an；a
C
a；an
D
a；a