坚持不懈的努力是玛丽取得巨大成功的重要因素
Mary has been ____ hard ____the time.That's the most important reason____she is so ____
英语是世界上最重要的语言之一,所以越来越多的中国人开始对学英语产生了兴趣。
English is one of ____ ____ ____ _____ all over the world .That is why ____ and _____ people in China become ____ _____ _____English