Нужно соединить : valley mountains highland plain tundra desert steppes forest с a large stretch of flat land a treeless plain which is frozen hard in winter a large area of land without trees a very high hill of bare or snow covered rock a large sandy piece of land a large area of land covered with trees and bushes an area of land lying between two lines of hills or mountains often with a river running through mountainous areas

Valley - an area of land lying between two lines of hills or mountains often with a river running through mountains
highland - mountainous areas
plain - a large stretch of flat land
tundra -  a treeless plain which is frozen hard in winter
desert - a large sandy piece of land
steppes - a large area of land without trees
forest - a large area of land covered with trees and bushes
mountain - a very high hill of bare or snow covered rock