At the sight of her husband getting off the train, the woman walked forward and______him and stroked his white hair.
【正确答案】 A
【答案解析】各项的意思是：embrace拥抱；clap拍手喝彩；paddle拍打；flock聚集。紧紧拥抱他之后才可用手抚摸着他满头的白发，故选A。