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?

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?