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完形填空Robertisfifteennow.Twoandahalfyearsagohecametotheci...
问题详情:完形填空Robertisfifteennow.Twoandahalfyearsagohecametothecityand__1__tostudyinamiddleschool.Hestudieshardand__2__hisclassmates.Andheoftenhelpshisfriends__3__lessons.Butashecomesfromavillage,th...
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