{{i}}quEstions 14-17 ArE BAsED on thE Following DiAloguE.{{/i}}

whAt is thE mAin purposE oF thE mAn’s tripA．to improvE his skAting tEChniquEs.
B．to ClimB mountAins.
C．to tAkE A vACAtion.
D．to lEArn to ski.