1. 根据句子意思，用所给单词的适当形式填空。未提供单词的根据上下文填入适当的词。

Pizza is a kind of popular food. It (come)from Italy. The pizza “capital” of the world is Naples. The (world)first pizza restaurant is still there.

It  (open) in 1830.The best pizza of today has  long history. It was first made by a person named Raffaele Esposito in the 1880s.This pizza has the same colors  the Italian flag. The Italian flag is red, white and green. The pizza has red tomatoes, white mozzarella cheese and a green herb (香草).

There(be) many different kinds of pizza today. We can (order) chicken pizza, vegetable pizza, hamburger pizza, fruit pizza, and potato pizza. Some pizza is thick (厚的),and some pizza is. Some pizza has tomatoes, and some pizza doesn't have tomatoes. It may have other kinds of vegetables.

Most pizza is round, some isn't. You can choose any kind you want. People all over the world like (eat) pizza.