【A：Hello，Dad．Ihavecomebackhome．（81）___？B：I'minthesupermarketnow．What'sup？A：Er，it'saspecialdaytoday，isn'tit？B：（82）___．It'sFather'sDay．A：Doyouhaveaplan？B：Notyet．（83）___？A：Whatab】

　　A：Hello，Dad．I have come back home．（81）___？

　　B：I'm in the supermarket now．What's up？

　　A：Er，it's a special day today，isn't it？

　　B：（82）___．It's Father's Day．

　　A：Do you have a plan？

　　B：Not yet．（83）___？

　　A：What about spending the day with my grandpa？

　　B：Good idea．What can I buy for him？

　　A：（84）___．His sports shoes are too old．

　　B：OK．Then wait for me at home．

　　A：（85）___？

　　B：I will be back in an hour．