The door remained _____for quite a few days.A.locking B.locked C.lock D.to lock正确答案是B,为什么不能选A呢?这里是不是有关于remain的一些用法?

the door remained ___a)closingb)locked选什么 Push the door hard,it will open.__ __ push the door hard,__ will open. please __(help) him __(open) the door He left and kept the door open同义句He left __ __ the door __.有3空。 The door remained locked.我知道remain是系动词,为什么后面加了ed,是过去式吗? Let __ clean the door.请回答求求你 what are __ the door?-- they are some brooms. there is a __(敲门）at the door There are some umberllas behind the door.对some umberllas behind the door.进行提问__ __ behind the door?划线的部分填2个词. the next day they found that the door remained -,and that the boss was gone .a.to lock b.locking c.locked d.to be locked i __(read) a history book when someone __(knock) at the door 这句句子的反意疑问句怎么改?Open the door,__ __? 3.The door of the shop remained ___,though it was ten o’clock am.A.opened B.opening C.locked D.locking 英语 有人挡在汽车门前时,我很生气 I __ __ when someone __ in the bus door He open the door with a knife.把with a knife划掉.对划线部分提问__ __he__ the door? Tom can't get into the room because he __(lost)the key to the door. her 和herself区别She looked about __ and went through the door and closed the door behind __.为什么两个都用HER 什么时候用Herself The chair was beside the door .It was __ it填near 还是next to?为什么?