改为否定句：The boy does his homework on his own.改成否定句的时候是doesn't

问题描述：

改为否定句：The boy does his homework on his own.改成否定句的时候是doesn't do 还是直接doesn't his
改为否定句：The boy does his homework on his own.
改成否定句的时候是doesn't do 还是直接doesn't his homework?

1个回答分类：英语 2014-12-07