问题补充:
单选题Thevisitingprofessorgaveussomeadvice,____ofgreathelptoourEnglishlearning.A.I think it isB.I think which isC.which I think isD.which I think it is
答案:
C
时间:2018-10-07 12:10:21
单选题Thevisitingprofessorgaveussomeadvice,____ofgreathelptoourEnglishlearning.A.I think it isB.I think which isC.which I think isD.which I think it is
C