【专题考案】1. —That must be a mistake. —No, it _____ a mistake. A. must not be B. needn’t be C. cannot be 四六级考试官网报名入口 D. would not be 2. —_____ I water the trees on Tuesday?
【专题考案】1. —That must be a mistake. 做风筝的材料 —No, it _____ a mistake. A. must not be B. needn’t be C. cannot be D. would not be 2. —_____ I water the trees on Tuesday? —No,