To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.
---You were tired out after the mountain climbing, weren't you? ---Yes, ______. I could hardly rise to my feet.
The fire spread through the hotel very quickly, but everyone __________ get out.
---Can I help you, sir? ---Yes. I bought this radio here yesterday, but it _____.
The Internet has brought _____ big changes in the way we work.
It was dark. We decided to ______for the night at a farmhouse.