Wang, speaking on the sidelines of an annual meeting of China's parliament, said China and the United States did not have to be rivals, and history showed that trade wars were not the correct way to resolve problems.
Another area of great interest to Mackerras has been China's ethnic groups, which he has written about extensively. In particular, he has taken a great interest in the Uygurs in Northwest China.
"The change in the last 50 years has been astonishing," he said. "I fell in love with the place ... when my wife (Alyce) and I went to Beijing as 'foreign experts' to teach at what was then called the Beijing Foreign Languages Institute. It is now called the Beijing Foreign Studies University, and I still love the place."
At Cambridge, Mackerras researched the Tang Dynasty, one of the greatest dynasties of imperial China.
The standard, jointly issued by the ministry and the State Language Commission, defines three categories of English language ability-basic, intermediate and advanced-with nine levels altogether, a statement on the ministry's website said.
For those who want to apply for advanced schooling, attain professional titles in China or study abroad, more English tests await.