It was a difficult time

选A turn out; 该短语意味结果是如何...；往往用于表示结果与预期的或最开始的不一样，如： It looked gloomy in the morning, but turns out to be a fine day at noon. 早上看起来阴阴的，结果到了中午是晴天。 该短语还可以用it做形式主语，后接to do或that引导的主语从句做真正的主语，如： We were worried about him all the night, but it turned out that he spent his whole night in a net bar!