—Is girl in white your sister? —Yes. She is a nurse and works in hospital.A. the; /B. a;

—Is girl in white your sister?
—Yes. She is a nurse and works in hospital.
A. the; /
B. a; the
C. the; a
D. a; a

A. the; /B. a; the(答案→)C. the; aD. a; a解析：根据后置定语in white可知前文特指某一个女孩，用定冠词；下文她在一家医院工作。可知是泛指任何一家医院，故用不定冠词。选C。

我也是这个答案