A．Carry little luggage．
B．Go through a health check．
C．Arrive 10 minutes earlier for boarding．
D．Undergo security check．

A．To improve his skating techniques．
B．To climb mountains．
C．To take a vacation．
D．To learn to ski．

A．Because her sister lives there．
B．Because she attends college there．
C．Because she lives thirty miles from there．
D．Because she had the vacation there last year．