．—Mary，here’s a dictionary．I hope it will help you．—Thanks a lot．It’s ________ what I need．

The old man lives ____ in the countryside, but he doesn’t feel_____ because he chats with his children on the Internet every night.

Wait till you are more_____. It’s better to be sure than sorry. 

—Oh, Dad, I really feel _______ before the exam.—Take it easy. Sure you are the best.

—I want to be an astronaut like Yang Liwei when I grow up.—That sounds ____. I hope your dream can come true.