下列长度的三条线段能组成三角形的是[ ]
A.1，2，3
B.3，4，5
C.3，1，1
D.3，4，7
答案：B
Kate ________ on her new novel, which is supposed to come out next month.
A．was working
B．had worked
C．will be working
D．has been working
下面哪一位意大利喜剧作家率先歌颂劳动人民（）
A、帕里尼
B、哥尔多尼
C、塔索
D、马里诺
