Mei Li:
Which Scottish Stadium hosted the Commonwealth Games in 1970 and 1986??
Shuai Zheng:
meadowbank
Mei Li:
What instrument is traditionally played by the leader of an orchestra??
Shuai Zheng:
violin
Mei Li:
What is the name of the tough fibrous structural protein found in fingernails and toenails??
Shuai Zheng:
keratin