he is doing his homework 改复数

he is doing his homework 改复数 He is doing his homework with me的复数 He is doing his homework .变复数...谢谢!快点啊 he is()doing his homework He is doing his homework He is doing his homework .翻译 He is j___ doing his homework. He is j___ doing his homework He is doing his homework 中文 He is b_____ doing his homework Her dog is 2 years变为不定句怎么变?He is doing his homework怎么变复数句? He is doing his homework.He said改为宾语从句