问题补充:
I think walking isour health.
A. good at
B. bad at
C. well in
D. good for
答案:
A. good at
B. bad at
C. well in
(答案→)D. good for
解析:be good at“擅长……”;be bad at“不擅长…;be good for“对……有益”;do well in在某方面做的好。根据题干,本句的意思是“我认为散步对我们的健康有益。”故用be good for。C项的结构是错误的。所以本题选D。