The boy must be sent to the hospital变主动语态

问题描述:

The boy must be sent to the hospital变主动语态

Someone must send the boy to the hospital.There must be someone to send the boy to the hospital.

You/We must send the boy to the hospital.

You must send the boy to the hospital.这里,我用了you作主语,你也可以用其他主语(谁送这个男孩去医院)