The mother believes that John's stupid, but it's different of Mary; she's just lazy.
A. in spite
B. in the case
C. in the course
D. in case
网友回答
A. in spite
(答案→)B. in the case
C. in the course
D. in case
解析：in the case of 意为：就……来说，至于； in case of 意为：以防万一