问题

his work these days,hehash’t _____ when to pay a visit to his parents· A.BentOn:decided on B.Worriedabout;turned onC.Facedwith;taken on D.Devotingto;focused on
A:must complete
B:Worriedaboutturned on
C:Facedwithtaken on
D:Devotingtofocused on
B:Worriedaboutturned on
C:Facedwithtaken on
D:Devotingtofocused on
正确答案是: