it was so happy that my friend came here to have a trip and i must go to airport to pick up him at 3 o 'clock forty.firstly,i left my house at 2 p.m.when i came to my car the dust storms roaring,and oweing to the poor visibility i encountered the traffic jams.then,i try my best to wait and get ahead .finally i got the airport and cought my friend at 3 o 'clock thirty just for delaying 20 minutes.it is a stimulating day.