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.
所以需要把原句变为:The fire is outise,所以其反义疑问句为:isn't it?
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.
所以需要把原句变为:The fire is outise,所以其反义疑问句为:isn't it?