Read the sentences below. Which can we use to make an appointment? cancel an appointment? • Are you free tomorrow? • When would you like to meet?

  1.       Valeri Chkalov flew over the North Pole in America in 1937
2.       Christopher Columbus discovered America in 1492.
 3.       Vladimir Lysenko has travelled round the world.
4.       Captain Cook made a sea trip round the world twice in 1771 and in 1774.
5.       Nikolai Przhevalski walked 35,000 km across Central Asia between 1870 and 1873.
6.       Yuri Senkevich has visited over a hundred countries.