阅读下面的短文,根据所给首字母提示,用合适的单词填空。
Switzerland is a small c__ with high mountains,thick forests and blue lakes.Swiss people d_ on its rich nature resource to live.In winter the sun is brilliant,but the air is cold.Visitors go to Switzerland for winter s__.They wear warm clothes and sunglasses.They go up the mountains in lifts and ski down.They also skate on icy lakes.Visitors go to Switzerland in the summer time,too.They can c__the mountain or walk in the forests.They can swim in the warm lakes or they can go b__on them.People call Switzerland the playground of Europe.