The postman delivered a letter this morning.(Who) 改成疑问句怎么改?

The postman delivered a letter this morning.(Who) 改成疑问句怎么改? 改为被动语态：The postman delivered a newspaper this morning My mot Finally the postman delivered the letter they had been waiti Jim left the village this morning 怎么改一般疑问句 This is a big house?改成疑问句 怎么改 he cleaned the room this morning改成一般疑问句 Who's that at the door?____ is the postman.A.She B.This C.It they saw a plane out of the window this morning改一般疑问句 I get up in the morning怎么改疑问句 定语从句改 疑问句The girl who is standing there is my sister.改成疑问句.转 There is a nurse in the room 改成疑问句怎么改 --who's that at the door?--____ is a postman.