（ ）She must be in her room , ___?A. isn’t she B. is sheC. mustn’t sheD. needn’t she
热心网友
A肯定此累题应该根据MUST后面的而行。再举一例：He must have finshed his homework,haven,t he?
热心网友
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
热心网友
选A！这属于猜测性题目，其他例如：can,cannot ,should ,may might 等 学东西要举一反三才行，祝你学习进步！！！！
热心网友
选A这是判断句,改为陈述句为She is in her room,所以是isn't she