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?

This boy does exercises in the morning.(改为否定句) Mary does the housework.(改为否定句) The boy has a pen.(改为否定句） 为什么是does not have,而不是hasn't? the boy swims faster than the girl.改为否定句 The English boy can spesk Chinese.(改为否定句) The boy goes to school by bus.改为否定句 The little boy can speak English 改为否定句 the boy did his homework yesterday改为否定句 the+boy+used+to+eat+candy怎么改为否定句 The boy dues some housework at hone.改为否定句 The little boy is learning to paint.(改为否定句) the boy was fat then.改为否定句 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? she does her homework in the evening改为否定句 kitty does her homework in the evening,改为否定句 she does morning exercises in the garden.(改为否定句 she does her homework in the evening.改为否定句 Kate does homework in the evening .(改为否定句）