the.chalk前面填in还是with还是on呢,啥意思啊

the.chalk前面填in还是with还是on呢,啥意思啊 The naughty boy was seen ( )chalk in the calssroom.答案是playing with为什么不能填to be playing withto be doing表示什么？ the sky前面是in还是on还是with there ____ two boxes of chalk on the desk.应该填 is 还是 are? There is some--------(chalk) in the box Where is Mr.Wood? He is in the classroom. He is writing on the blackboard with the chalk. there will be schools in future 一般疑问句 _____there______ ______in the futurethe teachers will write on the blackboard with chalk 改为否定句the teachers_____ _____ on the blackboard with chalk is the girl talking with you is前面填who还是 what _ is the weather in Beijing in winter?前面填what还是how 猜谜语:what is in the middle of the world?teacher write on me with chalk.l canteacher write on me with chalk.l can not talk.what am Mr.Wood is writing on the ＿＿with chalk there is not ( ) chalk in the classroom.please gthere is not ( ) chalk in the classroom.please get ( ) for me living in the city can‘t.living in the countryside.空中填be compared with还是compare with? with chalk in chalk用粉笔为什么是with而不是in,这个题this book is writing in pen而用with是 this book is with a pen没有弄明白,请问英语高手给我讲一下不懂，那为什么The one written in pencil?可以用in The teacher is writing ____a piece of chalk on the blackboard while the students are writing ____ink in exercise books.A with,inB in withC in,inD with,with line 前面加什么介词 with还是in还是at the girls with the man ( )born in 1992.填were还是was,为什么? have trouble ______physics .填in 还是with