Mei Li:
Dogberry is a constable in which play by William Shakespeare??
Shuai Zheng:
much ado about nothing
Mei Li:
In what year was Mary Poppins written??
Shuai Zheng:
1934
Mei Li:
What is the name of the tough fibrous structural protein found in fingernails and toenails??
Shuai Zheng:
keratin