I don't think I could take having a sister get married very

I don't think I could take having a sister get married very I don't want to get married. take my advice:don't get married! The exam was very easy ,but I don't think( ) could pass it . The physics exam was very difficult.I don't think could pass I don't think you should take the first job offer you get.麻烦 I don't think your sister has finished her course,__?A.do I I don't think i could never do for Don't get married i don't think he could have done better than that,()?A.do i I don't think your sister ____ this red skirt I don't think she is beautiful,but my sister