Is it a Noun or an Adjective?

"He finished the race with ease."

"He finished the race with easy."

Which is correct?

I hope you said ease because the noun form is needed in this sentence (easy is an adjective).

Take a look at the following ten sentences. What's missing in each one: a noun or an adjective?

Do you want to review a little before you start? Then click here for a fantastic lesson on this subject.

• You always look so ___.
  
  happiness
  happy
  
  
• I want to travel while I'm still ___.
  
  young
  youth
  
  
• ___ continues to be a big problem in this region.
  
  Poor
  Poverty
  
  
• It's common for small children to be ___.
  
  shyness
  shy
  
  
• Did he take ___ at what I said?
  
  offence
  offensive
  
  
• A lot of people feel ___ when the weather is bad.
  
  depressed
  depression
  
  
• There's a lot of ___ in the media about this movie.
  
  excitement
  exciting
  
  
• The problems on the subway caused ___ with commuters.
  
  confusion
  confused
  
  
• It seems that ___ is in the air tonight.
  
  romance
  romantic
  
  
• The ___ of this report can not be ignored.
  
  importance
  important