问题补充：
, he always makes time for his family.
A. No matter he is busy
B. No matter how busy he is
C. However he is busy
D. However busy is he
答案：
A. No matter he is busy
(答案→)B. No matter how busy he is
C. However he is busy
D. However busy is he
解析：考查让步状语从句。How后面一定要接形容词或者副词。排除AC；同时让步状语从句要使用陈述语序，D也错误。句意：无论他有多忙，他总是抽出时间陪家人。
