The fire must be outside.(改成反义疑问句) The fire must be outside_ _

问题描述:

The fire must be outside.(改成反义疑问句) The fire must be outside_ _
周天之前

答案:The fire must be outside, isn't it?解释:此句中的must表示肯定的推测,此时其反义疑问句和must无关,必须根据具体语意和语境来选择.must be指对现在情况的推测,如果是对过去情况的推测,必须用must have been....