根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。请将答案填写在答题卡的相应位置。
(Tim=T   Mum=M)
T:   Mum, mum!
M:____ ?
T:  Tomorrow I'm going to take part in a sports meeting, but my sports shoes are worn out. I must buy a new pair.
M:____ ?
T:  Look! There is a big hole in this one, and the other one is broken, too. I think nobody can mend them well.
M:  Yeah, that's true. Well. ____ ?
T:  Mum, I'm wearing size 8 now, but they're a little small. Size 9 is just right, I think. But when shall we go shopping?
M: ____ ?
T:  Tomorrow? Tomorrow is too late. Shall we go after school this afternoon?
M:____  I'll meet you at the school gate.
T:  Thanks, Mum. Oh, I must go to school now. See you then. Bye.
M:  Bye.