He bought _____ new pair of reading glasses.
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This is the first time that the child has seen _____ elephant.
A. a
B. an
C. the
D. X
For many people，_____ childhood was not a happy time.
A. a
B. an
C. the
D. X
Benita enjoys wearing _____ jewelry.
A. a
B. an
C. the
D. X
He mentioned that _____ information he had been given was useful.
A. a
B. an
C. the
D. X
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