He must be working句型转换改成He is _____ ______

He must be working句型转换改成He is _____ ______ he must ( )here.《be》 He must be happy! He always wants to get more money without working.He must be c __.这个题目根据首写字母填空怎样做? 英语求教啊!毕竟我是个英语废He must be working.（改否定猜测）Sally goes to school,she _____（can‘t be,must be）at home now.还有几十分钟就要去上课了快! It must be John.Who else would _____ he does?A.work hard as B.be working as hard as C.It must be John.Who else would _____ he does?A.work hard as B.be working as hard as C.do harder work than D.work harder than 为嘛答案是b而不是d 关于情态动词的用法You _____ be tired; you have been working for so long a time,but he _____ be tired; he has just begun to work.A.may not; must B.must; may notC.can’t; must D.must; can’t我选的是B 但是 我知道的是can 表示逻 句型转换：It must be SARS.(变否定句） 用Something must be done to句型造十个句子 where is Jack?He ( )in the office.He usually doesn't go home until nice.A.must be working B.should work C.may be work D.will work must＋have done 句型must＋have done 表对过去发生事情有把握推测.但是可不可以用must +be 这样的句子来表示?比如说 He must have made it for you.可以变成 He must be made it for you 另外 疑问否定中的can't/could He must be fun.何如改成一般疑问句?Must he be fun 还是Is he fun? He must be fun.何如改成一般疑问句?Must he be fun 还是Is he fun? 英语翻译he must be--------- ------------thirty years old He must be verg tired.变反意疑问句? He must be American等于什么 Where is he?He must还是must be on that island.选择题,是选 must 还是 must be.谢谢帮忙! 1.——the project in time,the staff were working at weekends.A.Completing B.Having completed C.To have completed D.To complete2.He must be helping the old man to water the flowers,A.is he B.isn't he C.must be D.mustn't be3.He found a lot of _were_.