It was raining heavily, _____ we decided to stay at home and watch TV.

The rivers will become dirtier and dirtier ______ we take action to protect them.

 Call a taxi, ______ you will miss the train.

My father doesn’t like surfing the Internet. I don’t like it, ______.

—Is it interesting to play computer games?—Yes, _____ you are interested in playing computer games, you’ll have trouble giving it up.