It’s quite _____ of beginners to forget to use an article before a noun.

When there's doubt the examiner's decision is _____.

There was a(n)________silence in the live interview，when no one knew what to say to the audience.

 ______ with a difficult situation, Amold decided to ask his boss for advice.

The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.