You must stop smoking.It will _____ to your health.A.do harm to B.be hurmful for C.do harmful to D.be harm to
问题描述：
You must stop smoking.It will _____ to your health.
A.do harm to B.be hurmful for C.do harmful to D.be harm to
答
You must stop smoking.It will _D____ to your health.
A.do harm to B.be hurmful for C.do harmful to D.be harm to
答
选A，harm是名词，"损害，伤害，害处”，do harm是“有害”的意思，harmful是形容词，意思是“有害的”，do harm和be harmful后都用介词 to。
答
选【A】
do harm to固定短语
答
do harm
do harm to ...对……有害
答
答案：【 do harm to】
【●速度回答,】
【亲!你的10分满意,我们团队的无限动力】
答
D你必须戒烟，吸烟有害健康。