将下列句子排列成两人之间的对话并把序号填在横线上
1,Sure,Mum.I’m coming.Mum:______________
2,I’m reading a book,Mum.Liu Tao:_____________
3,Where’s your father?Mum:______________
4,I’m cleaning thekitchen.Can you come and I help me?Liu Tao:__________
5,Perhaps he's watering the flower.Liu Tao:_____________