Theuniversityestimat的精選

問題詳情：Theuniversityestimatesthatlivingexpensesforinternationalstudents_____some﹩8，450ayear，which_____aburdenforsomeofthem．（）A．are；is      B．are；are   C．is；are     D．is；is【回答】A知識點：主謂一致題型：...