12. They were astonished _____ the news of his escape from prison.
_____ you understand the rules of the game, you will enjoy it.
The child asked his mother ______ go out to play tennis.
Mr. Zhang, our math teacher, is strict with students and serious in teaching work, so he ____.
—Ron, I congratulate you on your success. —Thanks, but the honor _____ to all the people here.
—What do you think of the play? —_______. There are many interesting characters in it.