Which of the following was NOT on the agenda of the G20 meeting

单项选择题The Prime Minister in Britain is head of______.

单项选择题Who were the natives of Australia before the arrival of the British settlers

单项选择题Which of the following writers is a poet of the 20th century

单项选择题The distinctive features of a speech variety may be all the following EXCEPT________.

单项选择题The distinction between parole and langue was made by______.