题目

阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。 An 80-year-old man was sitting on thesofa in his house along with his 45-year-old highly educated son.Suddenly a crow（乌鸦）perched（栖息）on their window. The father asked his son, Whatis this? The son replied, It is a crow. After a few minutes, the father asked hisson for the second time, What is this? The son said, Father,I have just now told you, it's a crow! After a little while, the old father againasked his son for the third time, What is this? At this time some expression of irritation15. (2015 •菏泽学业考) 西藏是中国神圣领土不可分割的一部分，将西藏置于中央政府直接管辖之下开 始于 — ()   A. 汉朝   B. 唐朝   C. 元朝   D. 明朝