Bill Gates is so _____ that he has given away most of his money to charity.

To be well-informed , we should be ______ communication _____ each other about what happens to us.

It ______ him an hour to play basket ball every day.

The movie is about a true story ______ happened in Tang Shan in 1976.

What’s the matter with your mother? —She ______ a sore throat.