补全对话Alan:Hello,Helen.Helen:__,Alan.__areyou?Alan:__thankyou.____?
Helen:lam__,.Whoarethey?Alan:Theyaremy__.Toseare__parents.Helen:__isshe?lssheyour__?Alan:Yes,sheis.Oh,andthesearemy__.Helen:Brothers?Oh,youlookthesame.Doyouhavegrandfatherand__?Alan:Yes.My__arenotwithus(不和我们一起).Helen:Howare__?Alan:Theyare__.Thank__.Helen:ThatisOk.
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