—Jackie Chan has donated dollars to charity.—He is an example to us all.
Not only his parents but also his brother _____ to the Summer Palace. They haven’t been back.
Tell me everything _____ you know.
I have many hobbies, _______collecting stamps, playing football and so on.
I wonder if he tonight. If he, I’ll let you know.
- The air pollution is terrible. - It will be worse ________ we take action to protect the environment.