Milan（米兰） is an old city with a long history.It was set up about 2,400 years ago.Milan is in the north of Italy.It is the second largest city in Italy.Milan is often covered in a thick blanket of fog（厚厚的一层雾）.There are more than 1,300,000 people in Milan.And it is also the biggest business center.There are two international airports in the city.Many main roads meet here.Milan is also a center of culture in Italy.Leonardo da Vinci（达芬奇） worked in Milan from 1482 to 1499.The Last Supper,one of his most famous paintings,was created in Milan.It can still be found here.Today,Milan attracts more and more visitors.Tourists from home and abroad can be seen everywhere.If you have a chance.you can choose to visit Milan.

根据英文释义及首字母提示,拼写单词.
（1）a ______ a place where a plane can land on or take off
（2）v ______to go to see a person or a place
同义句转换,每空一词.
（3）It is the biggest business center.
It is bigger than ____________business centers.
根据短文内容回答问题.
（4）Where is Milan? ______
（5）What is Milan often covered in? ______
（6）Is Milan the first largest city in Italy? ______