It is a city in a hurrry,but a very exciting place to be请问“to be”在句中起什么作用?

it is in the biggest city in ( )this is Shanghai city.it is a beautifful city.it is in the biggest city in ( ) It is a m____school in our city首字母填空 There is much rain in Wuhan .It's a ( )city It's a small city,变成感叹句.() () () city it is! It is capital city of the US.It is a big city.The white House is in this city .是什么啊 C Sanya is the southernmost city and the most beautiful city in Hainan Province.It is known as “a It is a city of contrasts. 翻译it is a city of contrasts. life in the city is quite different from ________ in the country.A.it B.that Chongqing is a beautiful city. it liesChongqing is a beautiful city. it lies the southwest of China. A.on B.to C.in D.of Venice is a beautiful city in I__ there is a railway < >in the city Toronto is a beautiful city in( ) S___ is a big city in Australia. Shanghai is a m___ city in China. Spring is a best ( )in our city Is Brighton a city in England Shenzhen is a s____ city in China