He must have been sent to the hospital 改反意疑问句

He must have been sent to the hospital 改反意疑问句 the sick ____(have/has) been sent to the hospital, She must be sent (must sent) to the hospital The sick have been sent to hospital 这里加be是不是被动? They must have been to the USA,have not they?与He must have b sent to the hospital 与 sent to hospital的区别 "sent to hospital"与"sent to the hospital"的区别 I have been to the hospital only once since he went to hospi -Jack ought to have been taken to the hospital. -是A.So he wa I' m sure he must have been sleeping at the moment 的反义疑问句 the injured boy must be sent to the hospital at once,()his r The boy must be sent to the hospital变主动语态