The old gentleman just stood there ________ at the pickpocket and did not say a word.[ ]

You bought the car about ten years ago—Yes. _______ it’s old, it still runs well.

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

Curious about the world around him, my son____ask me endless questions when he was young．

The computer was used in teaching. As a result，not only _____，but students becamemore interested in the lessons.