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 — What color is it? — It’s _______ orange. It’s _______ orange pen. 
#32875
A
a, an
B
an, an
C
/, an
D
an, a
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- What do you want to be when you grow up?-I want to be_______ social worker. Many people are in great need of our help.
#33367
A
a
B
an
C
the
D
不填
There is long way to go for scientists to study _____space.
#33850
A
a
B
an
C
the
D
/
What          good news! We will have          long holiday after the exam.
#34142
A
/; a
B
a; /
C
/; /
D
a; a
 —Is _______ red bag under the table yours, Jean?—No, I only have _______ yellow bag. Maybe it’s Julia’s.
#32078
A
a; the
B
the; a
C
a; a
D
the; the
________ exchange student from Spain is ________ university student.
#33417
A
An; an
B
The; a
C
The; an
D
The; the
不定冠词(a,an)
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