Complete the sentences below using the verbs in the Present Perfect or Simple Past: Most people 1)__________(never-visit) the North Pole, but Parker Liautaud has. Last year Parker 2)___________(ski) 130 km across the Arctic in freezing temperatures. In the same year, he also 3)___________(start) a Facebook page about climate change. It's amazing because Parker in only sixteen years old ans still 4)___________( not finish) school - he is a very young explorer.