Mei Li:
Which great battle between the Greeks and Persians took place in 490BC??
Shuai Zheng:
battle of marathon
Mei Li:
Who wrote the novel Cold Comfort Farm??
Shuai Zheng:
stella gibbons
Mei Li:
For what does the 'U' stand in UPVC??
Shuai Zheng:
unplasticised