There is a chess match between a Korean player and AlphaGo(阿尔法).—It’s very amazing. Playing _____ chess is usually ________ one-to-one game.

11—Do you know where Bob is? —He has won a holiday for two people to New York He ______ his mum

（2015·浙江）Albert Einstein was born in 1879. As a child, few people guessed that he a famous scientist whose theories would change the world.

What do you do after school –I play tennis_______my friends

―What can I do for you―__________.