must be crazy为什么要在must前加be,如果不加有表示什么/

must be crazy为什么要在must前加be,如果不加有表示什么/ I think she must be crazy! I think you must be crazy. 帮忙翻译you must be crazy the god must be crazy有几部 求一首歌,有I must be stupid must be crazy She must be at least forty .为什么要在must前加be?must后加be I must be stupid,must be crazy,must be out of my mind 是哪首歌里的 I must be stupid,must be crazy,must be out of my mind什么意思 I think this guy must be crazy!哈哈 I think this gay must be crazy!Fuck 是什么意思? god must be crazy 英文影评800字左右吧、 上帝也疯狂 THE GODS MUST BE CRAZY怎么样 He must be crazy 中是形容词crazy修饰名词he? Must mu 什么意思 be crazy be stupid You must be home at half past ten.为什么要用be,be是在什么情况下用的? You must be on time.为什么要用be?