they took the sick boy to the hospital at once改为被动语态 at once

they took the sick boy to the hospital at once改为被动语态 at once Them made the boy do the woke at once.改为被动语态 they should do the work at once改被动语态 We took the boy to the ___________(安全) at once. The wouded and the sick must be taken to--hospital at once 用 -People took the woman to hospital at once because she was-- people took the woman to hospital at once because she was___ They took the boy to the hospital because he had a cold.改为被动 the injured boy must be sent to the hospital at once,()his r the letter _ _(must post) at once 被动语态 1.The boy ____(take)to hospital at once after…… we must take peter to hospital at once怎么改成被动语态