We are not allowed to smoke here、被动语态,可以改成主动语态么?怎么改.还有这一句可以改成we can't smoke here么?语法上能成立么?跟上面那句有什么区别?

Can I smoke here?Sorry.()hereA we don't allow people smokeb People are not allowed smokingCNo smoking is allowedd It's not allowed for people smoking we are not allowed to touch it we 括号 touch it 问用mustn't 还是havent to 为什么 Now we are not allowed to touch it是什么时态 We are not allowed to go to the movies _school we are not allowed to touch it=we mustn't touch it为什么不是等于we mustn't to touch it we are not allowed to touch it,we touch it A mustn't Bmustn't to C haven't tO 选哪个为什么 we are allowed Don't _____ the office if you are not allowed. 用“weare allowed to和we are not allowed to”造句各三句 什么是boots are not allowed are not allowed等于什么 These characters are not allowed “we are allowed to”是什么意思 对与错为什么we do not allow people to smoke here.people are not allowed smoking here.people are not allowed to smoke here. 1.----Why is the classroom so dirty?----Sorry,sir.It_____yesterday.We forgot to do it.A.don't clean B.didn't clean C.weren't cleaned D.wasn't clean2.We_____to go into the school unless we are in school uniforms.A.allow B.are allowed C.are not allowed 1.----Why is the classroom so dirty?----Sorry,sir.It_____yesterday.We forgot to do it.A.don't clean B.didn't clean C.weren't cleaned D.wasn't clean2.We_____to go into the school unless we are in school uniforms.A.allow B.are allowed C.are not allowed People _____to drive after drinking.A、warn B、warn not C、are allowed D、aren't allowed Now we are not allowed to touch it.为什么要加to