题目

阅读下面短文，根据短文内容选择正确答案。 To us, it seems so natural to put up an umbrella to keep the water off when it rains. But in fact the umbrella was not invented as protection against the rain. Its first use was as a shade against the sun. Nobody knew who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, back in the eleventh century BC. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its uses：it became a symbol of honor and po—What's wrong with you,Eric? You look tired．—I ________ studying to prepare for the final exam last night.（　　）A.picked up B.stayed up C.woke up