题目内容
3. They feel happy to have grandfather.
A. a 80 years old B. an 80 years old
C. a 80-year-old D. an 80-year-old
3.D
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题目内容
3. They feel happy to have grandfather.
A. a 80 years old B. an 80 years old
C. a 80-year-old D. an 80-year-old