Our English teacher has son.A. a 8-year-oldB. an 8-years-oldC. a 8-years-oldD. an 8-year-

问题补充：

Our English teacher has son.

A. a 8-year-old

B. an 8-years-old

C. a 8-years-old

D. an 8-year-old

答案：

A. a 8-year-old

B. an 8-years-old

C. a 8-years-old

(答案→)D. an 8-year-old

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