They shouldn't wear jeans in P.E. class.怎么变被动语态?

They shouldn't wear jeans in P.E. class.怎么变被动语态? 主动语态变被动语态,1.He shouldn't allow his son to swim in the river. You must hand in your homework after class.变被动语态怎么变 his mother shouldn’t allow him to wear earrings改为被动语态 they speak English in class.（改为被动语态） They must have lost your letter in the post 怎么变被动语态 Don't wear jeans in the PE. class, the teacher will ask you 祈使句 变被动语态don't let go of the rope 怎么变成被动语态,祈使句怎么变被动语态 求帮助英语didn't they tell you to be here six o'clock变被动语态怎么变? they test this new car的被动语态怎么变? 被动语态变主动语态怎么变 主动语态变被动语态一、 把下列句子变成被动语态：1.They used recorders in English cla