用could,must,mustn't填空.look at the sun.it （）be 12.we have to go home for lunch.2.lt’s dangerous.you （）swim in the lake.3.the pen isn't yours.whose（）it be?4.you （）be hungry after all that walking.5.be quiet!you（）talk in

we什么work hard用must或mustn‘t填 用could,can,can't,must,mustn't need't may填空 juyce must obey her parents.Oh .she must ,------ she?为什么填mustn't 而不是shouldn't 添must或mustn't. 用must和mustn't造句 各造五个句子! 用must和mustn't造句 各造五个句子 那个~老师~must否定可以用mustn't吗? must在什么时候可以用否定的,即mustn't? ---____I take some photos in the hall?---No,you____ A Can,need't B Must,mustn't C Could,won'tD May,mustn't选哪个,原因 翻译 may I ,could I,等这些的肯定和否定回答-may i ……-yes,you ** 能填什么 -no,you can't/mustn't.-could i……-yes ,you can.-no,you can't 好象有点不礼貌.-must i ……-yes,you must.**-no,you needn't/don't have to.-need i ……-yes People usually use s_ to show what you must and mustn't do填什么?快 这道填空怎么填：You mustn't (两个字母）silly.You must eat. He must go填反义疑问句,是写mustn't he 还是does not he ____ I clean the door?no,you ___.A.need;mustn't B.must C.may D.could You mustn't walk on grass,must you?后句中的must用的对吗? must否定形式是mustn't? must 和mustn't有区别吗? 用 you mustn't 写六条班规应该是用 you mustn't in the classroom写三条班规和用 you must 写三条