中国十大古典悲剧
参考答案：
《窦娥冤》《赵氏孤儿》《精忠旗》《清忠谱》《桃花扇》《汉宫秋》《琵琶记》《娇红记》《长生殿》《雷峰塔》
It is really a pity that I can not attend your wedding party this weekend. I _________ a very important international conference in Paris then.
A．have attended
B．are attending
C．have been attending
D．will be attending
清水墙勾缝有哪些质量要求
