填出下面句子的同义句。
The boy swam very fast.（同义句）_______ _______ the boy swam!
The school trip is very exciting. （同义句）_____ ______ the school trip is!
If you don't hurry up, you 'll miss the train. （同义句）
______ _______ , _______ you 'll miss the train.
It is a very useful dictionary. （同义句）
_______ _______ _______ dictionary it is!
_______ _______ _______ dictionary is!
There was a big factory in the city in the past. （同义句）
_______ _______ _______ _______ a big factory in the city.