While income worry is ____ rather common problem of the aged,loneliness is another problem that ____aged parents may face.

    A.a;/                     B.the;/   C.a;the                 D.the;the?

While income worry is _______ rather common problem of the aged, loneliness is another problem that ________ aged parents may face.

A. a; 不填          B. the; 不填      C. a; the          D. the; the

While income worry is _______ rather common problem of the aged, loneliness is another problem that _______ aged parents may face.

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While income worry is _______ rather common problem of the aged, loneliness is another problem that ________ aged parents may face.。

A. a; 不填　　　　 B. the; 不填　　 C. a; the　　　　 D. the; the

While income worry is _______ rather common problem of the aged, loneliness is another problem that ________ aged parents may face.。来源:学|科|网]

A. a; 不填　　　　 B. the; 不填　　 C. a; the　　　　 D. the; the