His brother is ill.So he has to do some e()work1.H

问题补充：

His brother is ill.So he has to do some e()work1.His brother is ill.So he has to do some e( )work.2.At first he thought English was hard,Bue later he became i( )in it.

答案：

1.extra 额外的

2..interested 感兴趣

======以下答案可供参考======

供参考答案1:

1.easy

2.interested