The dog may be a good panion for the old. , the need to take it for walks may be a disadvantage.
A. Besides.
B. However
C. Therefore
D. Instead.
网友回答
A. Besides.
(答案→)B. However
C. Therefore
D. Instead.
解析：考查连词。前一句话有good，后面一句话有disadvantage，前后两句话有转折关系，所以选择
however。句意：狗也许是老年人的好陪伴。然而需要带着狗去散步时也许有不便。