They said that they could not see _______ in the park.
something 某事；某物；nothing没有任何东西；everything 每件事物，所有事物；anything任何事物；句意：他们说他们在黑暗中看不到任何东西。在否定句中要用anything，故答案为D。
There _______ a sports meeting tomorrow afternoon.
句意：明天下午将会有一场运动会。There be 句型的一般将来时结构为 There will be...或 There is/are going to be...，故答案为C。
She can speak English very well,so we are sure she can ______ first prize.
win 赢得；beat 打败；lose 失败，失去；miss 想念，错过。句意：她英语说得很好，所以我们确信她能得一等奖。故所缺的词是win，答案为A。