[解析]
BA
W:Dad,I don't want to do my homework.
M:Why?
W:It is too difficult for me.And I have to practice volleyball.I'll take the PE test next week.
M:Oh,I see.But you have to finish your homework first.Or your teacher will be angry.
W:But it will take me much time.When shall I practice volleyball then?
M:Don't worry.I can help you.