when the old man talks to his ——son,a——look came into his face 速度回答 20分 要原因
问题描述：
when the old man talks to his ——son,a——look came into his face 速度回答 20分 要原因
A disappointed disappointed
B disappointed disappointing
C disappointing disappointed
D disappointing disappointing
答
B
ed形容词修饰人,ing形容词修饰事、物