we have to clean the classroom改为否定句是加don't还是直接改成haven't

We have to clean the house ( ) time to time. we have to clean the classroom every day we have to clean the classroom改为一般疑问句 We must have someone ___ the room.填clean up,为什么不是to clean up We have to clean the classroom(对clean the classroom提问)___ ___ ___ have to do what e( ) do you have to do?we have to clean the classroom. We have to clean the classroom every day before the lessons begin的意思 We have to the classroom every day.对画线部分提问 画线部分：clean the classroom We'll have to clean the plates before mother__(come)back.填写正确形式 We will have to clean the plates before mother_____(come) home.说明理由 we have to clean the classroom改为否定句是加don't还是直接改成haven't we have to keep the water clean 这句话对吗?不对的话请更正, We have asked visitors to keep the beauty spot tidy and clean变成被动语态 We had to clean all the furniture. We have to(clean the classroom)after school.(对括号进行提问)___ ___ ___ have to ___ after school. At school,we have to (clean the blackboard).对划线部分提问_____ ______ you have to _____ at school. We have to get enough clean water.We ______get enough clean water.(用must改写） 英语翻译i finally undestand that we need to share the housework to have a clean and comfortablehome,i repiled