Choose the correct words or phrases (a or b) to complete the text.
My sister _____ (has played/played) chess since she was a child. When she was seven years old, our grandfather ______ (has given/gave) her a chessboard and ____ (has taught/taught) her how to play. She _____ (has loved/loved) the game and _____ (has played/played) every day. Two years later, she _____ (has won/won) a prize in a national competition. Since then, she ______ (has taken/took) part in competitions around the world. She _____ (has met/met) chess players from many different countries too. ______ (Has she ever lost/ Did she ever lost) a game? 'Of course!' she says '_______ (I've lost/ I lost) lots of games. But every time I lose, I learn something new'.