В тексте написано: "There the girls played with a ball and ate ice-cream. Sometimes they watched the ducks and fed them." Это значит, что в парке девочки играли с мячом, ели мороженое, а иногда наблюдали за утками и кормили их.
Ответ: Liz and Alice played with a ball and ate ice-cream. Sometimes they watched the ducks and fed them.