They do homework after school.怎么改成否定句和一般疑问句?

They do homework after school.怎么改成否定句和一般疑问句? They are doing homework.【改成一般疑问句和否定句】 they play football after school.改成否定句和一般疑问句 They do their homework after class改成疑问句,改成否定句 They do their homework after school 改为否定句 They enjoy making a model ship after school(改为否定句和一般疑问句） do your homework ofer school 变否定句和疑问句 they help their parents do some housework.改成否定句和一般疑问句(和回答) I always do my homework after school.把它改成一般疑问句 I do homework after school every day.(改为一般疑问句,做否定回答） “she had to wash the dishes after meals”怎么改成否定句和一般疑问句? They come from Australia.改成否定句和一般疑问句