Something must _____(do) to prevent flood from ______.(happen)怎么填空?

反疑问句 There must be something in the bag _____?. There must be something _____(visit)the homes in our neighborhood We must tell our teacher something _____ this.A.about B.to C.with D.for Something must _____(do) to prevent flood from ______.(happen)怎么填空? something must do,something must not do must 加to You must learn to face the _____ when you face something _____.danger dangerdanger dangerousdangerous dangerousdangerous danger You must do something to help your friend.(改成否定句）You ____ _____ _____ to help your friend. 必须采取措施防止此类事故在该市发生 用英语怎么说Something must be done _____ _____this kind of accident _____ _____ in this city. 如题 用动词的适当形式填空填空 something must be done _____(stop) cutting tree. There must be something wrong. You must have something,anything! something must fit in this Christmas must be something mo we must do something to improve our english改为被动语we must do something to improve our english改为被动语态____ _____ ____ ______ to improve our english I thought you _____ like something to read,so I have brought you some books.A.mayB.mightC.couldD.must选择原因? Over the past five years we ___(do)nothing,so we must _____（do）something that we can____(do) now. there must be something wrong to it It must be something like it.