The largest city in Canada is ______.

单项选择题Now the most important factor for a bank to win in competition seems to be ______.

单项选择题It can be inferred from Paragraph 2 that Christopher Lasch is most probably ______.

单项选择题When the factory worker in the third paragraph was a teenager, his father ______.

单项选择题Most advocates of voluntary euthanasia hold the opinion that ______.

单项选择题Big Ben is a famous ______in London.