单选题 More and more people nowadays are exercising, quitting tobacco, losing weight and becoming more health-conscious.

【正确答案】 D
【答案解析】quit停止做某事。give up 停止，放弃。Give in呈交，屈服，让步。Give out分发，散发，发出。give away有意或无意地泄露某事或出卖某人。