题目

阅读下列短文，从每题所给的四个选项（A、B、C、和D）中，选出最佳选项。In1826, a Frenchman named Niepce needed pictures for his business. But he was nota good artist, so he invented a very simple camera. He put it in a window of hishouse and took a picture of his garden. That was the first photo.Thenext important date in the history of photography (摄影) was in 1837. That year, Daguerre, another Frenchman, took a pictureof his reading room. He used a new kind of camera in a different way. In his pictureyou could see everything very clearly, even the smallest thinDon't let ________ go. [　　] A．him B．his C．he D．he's