they have a ruler改成对a ruler提问

they have a ruler改成对a ruler提问 they have some ruler变一般疑问句 I have a new ruler Who (have) a red ruler They have a box.改一般疑问句怎么改? it's a ruler?改复数句 this is a ruler.改复数 What did they did yesterday?（改成对的） They City Museumis in my left.（改成对的） 英语改否定句 Is this a ruler 如何改 Do you have a new ruler 翻译 i have a ruler Me too have i ruler may a组成一句话 may i have a ruler否定回答 I have a ruler?改为一般疑问句 They have a new English teacher改一般疑问句 改一般疑问句They have a good Eng lish teacher They have a house 改成一般疑问句怎么改