With question tags: (1)I don't t

With question tags:
(1)I don't think he will come,____? (2)They must have lost their way yesterday ____?
【正确答案】：will hedidn' 't they
【题目解析】：【考点点击】本题考查附加疑问句。【要点透析】当陈述部分谓语为don' 't think believesuppose/expect/imagine等词时,疑问部分用肯定式且与从句主谓保持一致。若陈述部分有must+have+v.-ed表示推测时,且句中有明显的过去时间的状语,问句部分用过去体,即didn' 't they,而不是 mustn'tthy