The center, dealing with children_______ to computer games, has achieved great success.
12. They were astonished _____ the news of his escape from prison.
11. Tom was arguing _____ the payment of the bill_____ John.
10. We were anxious _____ news of your safe arrival.
9. I was angry _____ missing the gongfu film with Cheng Long as hero.
8. "Pass ____ the bus, everyone." the conductor shouted politely.