--- Are you satisfied with what he did?--- No. It couldn’t have been ______.

My sister is ________. She likes making friends with others.

—Which one of these two dictionaries do you advise me to buy, Oxford or Longman?—Well, take Oxford. I think it is the ________ of the two.

This advertisement is a/an______ example of their marketing strategy

 When it comes to the civil war in Syria, the US government’s attitude towards it has experienced a(n)_______ change , which may have a positive effect on Syria present situation.