_______ Great Wall is _______longest wall in the world.
A；a
B. The；the
C. A；the
D. The；a
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_______ woman over there is _______popular teacher in our school.
A；an
B. The；a
C. The；the
D. A；the
He used to be _______ teacher but later he turned _______ writer.
A. a；a
B. a；the
C. ／；a
D. a；／
His father is _______ English teacher. He works in our school.
A. a
B. an
C. the
D. ／
Is he _______American boy ？
A. an
B. a
C. one
D. ／
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