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Presents For Children's Day

    Charles M. Schulz was born in 1922 in Minneapolis, the only child of a housewife and a barber. His interest in comics was encouraged by his father, who loved the funny pages. Charles M. Schulz sold seventeen cartoons to the Saturday Evening Post from 1948 to 1950 and Li'l Folks to the St. Paul Pioneer Press. Peanuts debuted(首次露面) on October 2, 1950, and ran without interruption(中止)for the next fifty years. Charles M. Schulz died in 2000.

    ●IT'S A DOG'S LIFE  SNOOPY

    It's a Dog's Life, Snoopy brings all your familiar friends together for great times and fun.

    ●IT'S A BIG WORLD  CHARLIE BROWN

    Charlie Brown faces some of life's little challenges with the help of Snoopy, Lucy, Peppermint Patty, Linus, and the rest of the gang(一伙) in It's a Big World, Charlie Brown.

    ●PEANUTS 2000

The last one is the special edition Peanuts 2000, which includes all the last year's Peanuts comic strip and Charles M. Schulz's famous farewell strip.

    Come and visit our website at www.ballantinebooks.com or come to Ballantine Bookshop, you'll have a big surprise.

    My grandpa often goes for a____in the park. He never loses his way.

    But yesterday, a police car____him home. A police officer told (告诉) me that my grandpa was____in the park.

    When the police officer went away, I asked grandpa, "What's____with you today?" "Nothing, I just felt____and I didn't want to walk home. So I called the police and they took me home."

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说明光电效应产生的条件为：光频率大于临界值？