Though it’s clear that smoking has a bad __________ on people’s health，my father still can’t give it up.
A. result B. impact
C. end D. practice
Though it’s clear that smoking has a bad __________ on people’s health，my father still can’t give it up.
A. result B. impact
C. end D. practice
【解析】选B。考查名词词义。have a bad impact on表示“对……有坏的影响”。