请你从方框中选择合适的选项完成对话, 并将其字母标号填在相应的横线上。( Mum: M Tony: T )

T : Could I invite my friends to my birthday party on Saturday, Mum?
M: {#blank#}1{#/blank#}
T :{#blank#}2{#/blank#}
M: What for?
T :{#blank#}3{#/blank#}
M: Well, I am shopping tomorrow. And I can buy drinks
and snacks for you.
T : Oh, good. Thank you, Mum.
M:{#blank#}4{#/blank#}
T : I cleaned it last week.
M: But you need to clean it again for your party.
T :{#blank#}5{#/blank#}
M: Then after you finish your homework, let's clean the room.

一      

— ________．Please help yourself．

—No, ______.

—________.