Because he has been out of work for months Jack now has to depend on his parents for li

问题补充：

Because he has been out of work for months, Jack now has to depend on his parents for living.

A. /; a

B. the; a

C. /;/

D. the; /

答案：

(答案→)A. /; a

B. the; a

C. /;/

D. the; /

解析：out of work失业，固定短语，不用冠词；living作名词解时，是“生活,生计”的意思,指的是一种谋生的具体方式或手段,是可数名词,常与冠词a连用。