I can't be in the sight of 如题~

I can't be in the sight of 如题~ I can't be in two minds! in my world,i can't be without you,i have beenaccustomed to the da What'll the world be like in the _______?I can't imagine . It _ Mary who was in the room.I'm sure it _— It ___ Mary who was in the room.— I'm sure it ___.A.can't be,can't be B.must be,mustn't beC.must be,can't be D.can't be must be John ( ) be in the classroom because I saw him in the library just now.A.mustn't B.isn't able to C.can't D.may not I think he must be in the office now,______?A.don’t I B.mustn’t he C.isn’t he D.can’t hethe reason,please! When i realized we can't stay with each other,i set you fly in the free sky!Be yourself! You make me fall in love 、And now I know I can't be the only one . He can't be in the classroom,I saw him go home a minute ago 我想问一下问什么不能用mustn't而用can't? You can't be noisy in the library改为祈使句 you can' t be noisy in the library.改为祈使句 I can't find my watch .but it must be s____ in the house 横线应该填什么单词? i can't be in the slght of you ...只记得那么一句歌词.请问是什么歌? Can't 、mustn't 、shouldn't 的区别?（急）比如一句句子：He ______ be in the room,I didn't see him.莪知道要用can't,但是为什么呢?为什么不用mustn't 、shouldn't Why Can't I Be Sorry I can't be Where is han mei?Do you know She ( )in the school library,but I don't sureA.can be b.may be c.maybe d.must be