填空：He is always ___ ____(忙着做）his homework every evening.A brave man may fall,but he can not yield.（赠送给你们）
问题描述：
填空：He is always ___ ____(忙着做）his homework every evening.
A brave man may fall,but he can not yield.
（赠送给你们）
答
busy doing
答
busy with
或engaged in