Mei Li:
Where is the world's largest cave system with 345 km of mapped passageways??
Shuai Zheng:
kentucky usa
Mei Li:
Whose catchphrases included 'Hello, playmates' and 'Ay thang yaw'??
Shuai Zheng:
arthur askey
Mei Li:
The 1954 movie White Christmas was the first to be made using what new Paramount film format??
Shuai Zheng:
vistavision