一道英语选择题,--Someone is knocking at the door.--Yes,it _____be T

一道英语选择题,--Someone is knocking at the door.--Yes,it _____be T Someone is knocking at the door.____ is it? someone is knocking at the door.who [ ]it be? ---someone is knocking at the door.Who _____ it be? -----Someone is knocking at the door.It ____ be Tom . There is someone knocking at the door.It may ________ (be) t 一道英语填词题There is someone knocking at the door.Please go and s --Listen! Someone is knocking at the door. 一道七年级英语题I saw someone knocking at the door.为什么用knocking,see —Someone is knocking at the door. —Yes, I’ll go and see who Someone is knocking at the door.Who it be?— It be Tom.He is someone is knocking at the door,who is it? A this is a polic