Mary can't be here .she-----------(do)her homework at home

Mary can't be here .she-----------(do)her homework at home sorry,I can't be here so early. can't be 和 must’t be有什么区别?比如，he can't be here.he mustn;t be here 有什么区别？ 王力宏的一首英文歌mary sayshow long has it been since i held you near?how long will it be till i have you right here?you say that it hurts i can't disagree but how can i hold on to someone who's leaving me?and mary says she's gonna be okshe Listen,Mary is singing in the next room.That ___ be Mary.She’s in hospital.A、may not B、shouldn’t C、wouldn’t D、can’t 有关情态动词的：1.Mr Black ,many customers want to see you._____they wait here or outside?A.will B.shall C.can Dwould2.The woman you saw in the supermarker____be Mary.She is in hospital naw.A.can't B.needn't C.shouldn't D.mustn't3.You_____ be 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 I can't see here. Do you want (be)a teacher?You can't play football here.（改为祈使句） — —football here 英语反问句He can't be here on time,_____ he Be quietmeans you_____make noise here.A.should B.shouldn't C.can That -------- be Mary.She is at home.选择：A can't B should C need D must That man _______ be Mary's father because he is much taller.A.can B.must C.can't D.mustn't请问B为什么不可以? 英语翻译can‘t be can't be用法 Be sure to be here early tomorrow,____ you?A、will B、aren't C、can D、could mustn't和can'tSusan ____ be here now because she has just gone to NewYork.应该填mustn't还是can't?详细的分析.. She( )be here now because she has just gone toShe( )be here now because she has just gone to New York.填can't还是may not