题目内容：

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

 

1.Mr. Green lives on the __________ floor of the building.

2.After exercising for a few months, she is a little           than before.

3.How much does it           to fly to Shanghai from Fuzhou?

4.Many foreigners are surprised at the rapid _______________ of China.

5.It rained heavily in the           of Fujian Province last week.