政治家在多大程度上代表普通人的观点？

___How ___far do politicians represent the views of ordinary people?

我们与生俱来的特征在多大程度上会影响我们未来的人生发展？

___How ___far and to what extent would the characteristics we are born with influence our future development in life?

证据在多大程度上支持他的理论？

___How ___far does the evidence support his theory?