Mei Li:
What was the first symphony to include trombones?
Shuai Zheng:
beethoven s fifth
Mei Li:
Which Puccini opera remained unfinished at the time of his death in 1924??
Shuai Zheng:
turandot
Mei Li:
The constitution of which country is the world's oldest still in effect??
Shuai Zheng:
san marino