来自吕文祥的问题
改被动语态.1.wemusttakePetertohospotalatonce.
改被动语态.
1.wemusttakePetertohospotalatonce.


改被动语态.1.wemusttakePetertohospotalatonce.
改被动语态.
1.wemusttakePetertohospotalatonce.
Petermustbetakentohospitalatoncebyus.