- 问题详情:OneyearagoBerthaandGracebecameclosefriendsatacollegeinDartmouth. Oneday,BerthasaidthatherauntMargarethadinvited(邀请)hertospendthesummerholidaywithher.Andtheywouldhavepicnicsandpartiesaswell.ButGracetoldBerthathatsheplannedtostayinClarkman...
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