She was reading a book in her chair first time I saw old lady.A. a; anB. the; theC. /; t

问题补充：

She was reading a book in her chair first time I saw old lady.

A. a; an

B. the; the

C. /; the

D. /; an

答案：

A. a; an

(答案→)B. the; the

C. /; the

D. /; an

解析：考查冠词，第一空使用the放在序数词前面，这个名词性短语the first time后面接时间状语从句；第二空特指那年纪较大的女士。句意：第一次我看见这位年纪很大的女士的时候，她正坐在椅子上读书。故B正确。