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—How old is your son?
—________ . We had a special party for his ________ birthday last Sunday.
A. Nine; nine
B. Nine; ninth
C. Ninth; ninth
D. Ninth; nine
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ÌâÄ¿ÄÚÈÝ
—How old is your son?
—________ . We had a special party for his ________ birthday last Sunday.
A. Nine; nine
B. Nine; ninth
C. Ninth; ninth
D. Ninth; nine