判断下列句子是否是被动语态,如果是,请说出是什么时态的被动语态
判断下列句子是否是被动语态,如果是,请说出是什么时态的被动语态
A new building will be built in our school next year
Should the lights be placed at both sides of the stage?
Our classroom must be cleaned every day
May I put my bike outside the school gate?