---who______it be that is knocking at the door? ---It_______be Father, but I’m not sure.
For a long time they walked without saying ______ word. Jim was the first to break _____ silence.
---Are my clothes too casual? ---No.You can go______you are.
More and more people shop online, ______advantage of low prices.
The Day of the Dead, an ancient Mexican festival, is not a sad day, but______time to celebrate ______cycle of life.
How______I help them to understand when they won’t listen to me?