经典超圆简 regular:who should be asked to go volunteer at your local hospital要变成被动语态

who should be asked to go volunteer at your local hospital要变成被动语态 The person who says it cannot be done should not interrupt the person who is doing it. should somoking be banned should advertisment be banned 什么时候使用should be? The man who says it cannot be done should not interrupt the man doing it 这句话怎么翻译？ 谢谢。 Do you agree thay a friend should be someone who is useful to you?Why?帮给个英语回答 You should be () to everyone how should history be taught? should college marriage be permitted