Mei Li:
What was the subject of the referendum held in Australia 1999??
Shuai Zheng:
to become republic
Mei Li:
Rubies and sapphires are varieties of which mineral??
Shuai Zheng:
corundum
Mei Li:
In the war in Afghanistan many lives have been lost due to IEDs planted by the Taliban. What is an IED ??
Shuai Zheng:
improvised explosive device