用must或mustn't,can或cannot……讨论中国和其他国家的习俗

添must或mustn't. 用must或mustn't,can或cannot……讨论中国和其他国家的习俗 we什么work hard用must或mustn‘t填 用can,can't,must或have to 填空 班级规章制度（英语）最好用must或mustn's 用could,can,can't,must,mustn't need't may填空 用can,could,may,must,shall,should,will,would,can’t,mustn’t,needn’t 或have to 填空1.There is air around us,thought we ________ see it.2.Your mother is getting better and better.You _______ worry about her.3.You _______ play football in the b 两道英语填空题,用can,can’t,may,may not,must,mustn’t填空.（有些两道英语填空题,用can,can’t,may,may not,must,mustn’t填空.（有些答案不止一个）求原因 用must have been/done或can*t have been/done 改写句子 用Must be/do或Can't be/do改句子. 英国文化习俗!急用!要用英语写的!最好用上 must mustn't can can't! 你么家里有什么家规 用can can't must mustn't句型写篇短文 must i go to the doctor's?No yuoneedn't ,mustn't ,can't ,must 情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来：1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn 情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来：1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn Today is Wednesday.He _______be at home.He ______ be at school.A.can’t,can B.can’t,must C.mustn’t,must D.mustn’t,can can can't must mustn't have to don't have to的区别 It must be yours.改为否定句怎么改啊?是用mustn't be还是用can't