Question

Iron is very useful. change this sentence in exclamation. ​

Answer 1

Answer:
How useful Iron is!

Answer 2

How useful the iron is!

EXPLANATION:

The given sentence is a declarative sentence which is in the form of a statement. We can change declarative statements in to exclamatory sentence by using the question words like ‘what’ or ‘how’ depending upon the statement. We can use ‘what a ‘or ‘what an’ before the adjective that is followed by the noun. We can use ‘how’ before the adjective without a noun.  

Example:

‘Peacock is a beautiful bird’ can be changed to ‘What a beautiful bird Peacock is!

‘You are a very kind woman’ can be changed to ‘how kind are you!’