For a long time they walked without saying ______ word. Jim was the first to break ______ silence.
. ________ is no doubt that your world is becoming smaller, due to the technological advance made by the computer.
The police is offering a(n) _________ of $2000 to anyone who will provide information about the lost boy.
. Tom hasn’t arrived yet. What can have ___________ to him?
The little girl walks ____________ she ______ an old woman.
After the earthquake, our government is planning to build a monument in Yu Shu in Qing Hai province ___________ the dead.