10.Lily isn’t here.She ______ have gone to the school library,or she ______ have gone to the meeting room,or she ______

问题描述:

10.Lily isn’t here.She ______ have gone to the school library,or she ______ have gone to the meeting room,or she ______ have gone home.Who knows?选may,must,can,can't should

may 表猜测不确定,may和must都是表猜测,只是程度不同,must更强烈些.