OneyearagoBerthaandGracebecameclosefriendsatacollegeinD...
问题详情：OneyearagoBerthaandGracebecameclosefriendsatacollegeinDartmouth. Oneday,BerthasaidthatherauntMargarethadinvited（邀请）hertospendthesummerholidaywithher.Andtheywouldhavepicnicsandpartiesaswel...