问题补充:
单选题Wecollectedalotofbookstogetthenecessaryinformationbutonlyhalf_________helpful,sowefailedtofinishthework.A.isB.areC.wasD.were
答案:
D解析 略
时间:2023-06-14 01:16:12
单选题Wecollectedalotofbookstogetthenecessaryinformationbutonlyhalf_________helpful,sowefailedtofinishthework.A.isB.areC.wasD.were
D解析 略