His grandparents were born in Qing Dynasty while he was born in 1920’s.A. a; anB. /;the

问题补充：

His grandparents were born in Qing Dynasty, while he was born in 1920’s.

A. a; an

B. /;the

C. the; the

D. a; the

答案：

A. a; an

B. /;the

(答案→)C. the; the

D. a; the

解析：考查冠词。句意：他的祖父母出生在清朝，然而他出生在19。前文清朝为专有名词，故加the表示特指。下文1920’s 是一个特殊名词，所以用the。故选C。