下列各句均有一处错误,请找出并改正
1.Tom,thepentsisverynice.___________
2.--Howmanyisyourbackpack?
--20yuan.___________
3.Lookattheyellowandblacksocks.It's5yuan.________
4.Theredskirtistwontydollar.______________
5.Iliketheblackshoes.I'lltakeit._____________
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