题目内容：

Switzerland is a small country with high mountains,thick forests and blue lakes.In winter the sun is b_______ but the air is cold.People go to Switzerland for winter s_______ .They wear warm clothes and sunglasses.They stay at h________ .People 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 mountains 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