If it ________ for the heavy rain then, we would have arrived here ahead of time.
Every year _____ money and energy is spent on environment protection.
Nobody knows for sure what effect the global warming have _____ our environment in the long term.
Seeing the world-famous pianist standing in front of her, the young pianist ______ a cry of joy and surprise.
The thief trapped in the house _____ from the window but the fear of falling to his death scared him not to do so.
________ computer games, his parents were very worried about his study.