When you feel you are happier and more relaxed after having a cigarette, you may bee addicted.
A. physically
B. visually
C. mentally
D. endlessly
网友回答
A. physically
B. visually
(答案→)C. mentally
D. endlessly
解析：考查形容词。A身体地B视觉地C精神地D无止境地。抽烟后，当你会感觉很愉快和放松，那你可能就精神上也沉迷其中了。根据句意得出C项是符合的。