求解决英语题初中英语题：One of the__ __coloured green. A.door;is B.doors

One of the doors is coloured green是什么意思,为什么door加s,既然是复数为什么is 问几道初三英语小题1.China is one of the greatest countries with the__ One of the rooms ____ three doors.A.there are B.there is C.h 求a green door原文 One of the children ( ) sitting near the door.A.is B.am C.ar 初三一道英语题Miss Green is a friend of（ ）A.mary's mother's B.mary' 英语谚语翻译中文The greatest step is that out of doors（ ）when one do Liu Chang,you________left one of doors open A.careless B、car 英语：he walked with the__ of a wooden leg.A.help B,use 应选哪个,两个 ____ is eating a meal out of doors.(picnic) 初中英语单词拼写.一.There is a tree here.The c___ of the tree green. —Where is my hat?—Is ( ) one behind the door yours?A.a B.the