用方框中所给单词的适当形式填空。(每小题1分,共5分) thin twelve cost south develop 小题1:Mr. Green lives on the __________ floor of the building. 小题2:After exercising for a few months, she is a little than before. 小题3:How much does it to fly to Shanghai from Fuzhou? 小题4:Many foreigners are surprised at the rapid _______________ of China. 小题5:It rained heavily in the of Fujian Province last week.